Lymphadenopathies mimicking lymphoma and vice versa. Session 3

Size: px
Start display at page:

Download "Lymphadenopathies mimicking lymphoma and vice versa. Session 3"

Transcription

1 Lymphadenopathies mimicking lymphoma and vice versa Session

2 T/ NK Cell System The human and rodent T and NK cell system is characterized by many highly specialized cell suopulations and functions, that are regulated by cellular and molecular interactions with multiple partners( T cells,b cells, macrophages, dendritic cells,endothelial cells a.o.).these interactions are presumed to occur also in the neoplastic counterparts and may even obscure the neoplastic process.

3 Lymphoid tissue extranodal Central lymphoid tissue Precursor T-cells Peripheral lymphoid tissue Peripheral (mature)t-and NK-cells Bone marrow Progenitor T-cell/ Prothymocyte NK gdt-cell Spleen Mucosa Peripheral blood Skin Skin Innate Immunity Subcapsular cortical thymocyte Common thymocyte ab CD4+ CD8+ Thymus CD4 Medullary thymocytes CD8 T lymphoblastic lymphoma/leukaemia Naive T cell CD4 CD8 Naive T cell AG Memory T cell CD4 CD4 Effector T cell T reg Memory T cell CD8 CD8 Effector T cell Adaptive Immunity Follicle FDC Peripheral (mature) T-cell and NK-cell lymphomas/leukaemias TFH

4 Functional subtypes of T and NK cells g/d T H T H CTL NK T Reg T FH Identification TCRd + CD4 8 bf + CD4 + 8 bf + CD4 8 + CD CD4 8 CD CD FOXP + CXCL + Antigen recognition frequent antigens w/o MHC restriction MHC II restricted extracellular antigens MHC I restricted intracellular antigen NKR IgG (ADCC) TCR MHC MHCII Transcription factor T-bet GATA MAF BCL6? Costimulatio n IL IL4? IFNg Recruitment Resident in epithelia, blood,spleen CXCR CCR5 CCR4 Resident in blood, spleen CCR4 CCR5 CD6L CXCR5 Effector arm Granz.B Perforin FASLl IFNg IL4, IL5, IL Granz.B Perforin FASL Granz.B Perforin IL IL IL CD4L Functional consequence s Lysis apoptosis Activation of Mf CTL DTH Defense against helminths Allergy Perforin: lysis GranzymeB: apoptosis FASL: apoptosis Control of autoimmunity Help for GCB-cells and more new TH effector cell subsets: Th9 ; TH 7 ; Th

5 Mature T-cell differentiation CD45RA + CD45R CD7 + CCR7 + L y m p h CCR7 + Non effector CD45RA CD45R + CD7 + CCR7 + Central memory cell T naïve N o d e CCR7 Effector FAS Effector memory cell CD45RA /+ CD45R +/ CD7 CCR7 BCL- Adapted from: Sallusto et al: Annu Rev Immunol. 4;:745-6

6 Mature T-cell development: Recall Responses CD45RA + CD45R CD7 + CCR7 + L y m p h CCR7 + Non effector Lymph node CD45RA CD45R + CD7 + CCR7 + Central memory cell T naïve N o d e CCR7 Effector FAS Effector memory cell CD45RA /+ CD45R +/ CD7 CCR7 BCL-

7 Diagnostic approach in PTCL Structural tumor features imply suspicion of PTCL Lack of B cell markers on supposed tumor cells (CD ; Pax5 ) Suspicious Tumor cells express Pan T cell markers( CD ; CD5; CD;, CD7; bf; CD ) Lack of markers present on normal T cells Proliferation status Clonality analysis

8 Peripheral T/NK-cell lymphoma classification: Clinical approach Localization very important Clinical syndromes (e.g. ITL, AILT) Predominantly leukemic/disseminated Predominantly extranodal Predominantly nodal Anaplastic large cell lymphoma Angioimmunoblastic T-cell lymphoma Peripheral T-cell lymphoma, NOS

9 CHAPTER Mature T- and NK-cell Neoplasms T-cell prolymphocytic leukaemia T-cell large granular lymphocytic leukaemia Chronic lymphoproliferative disorders of NK cells Aggressive NK cell leukaemia EBV-positive T-cell lymphoproliferative disorders of childhood Adult T-cell leukaemia/lymphoma Extranodal NK/T cell lymphoma, nasal type Enteropathy-associated T-cell lymphoma Hepatosplenic T-cell lymphoma Subcutaneous panniculitis-like T-cell lymphoma Mycosis fungoides Sezary syndrome Primary cutaneous CD positive T-cell lymphoproliferative disorders Primary cutaneous gamma-delta T-cell lymphomas Peripheral T-cell lymphoma, NOS Angioimmunoblastic T-cell lymphoma Anaplastic large cell lymphoma (ALCL), ALK positive Anaplastic large cell lymphoma (ALCL), ALK negative

10 ALCL%

11 S u r v i v a l ILCP : Overall Survival..9.8 ALCL ALK DLBCL PTCL Years

12 Proportion Overall survival of PTCL ALK + ALCL ALK - ALCL PTCL-NOS AILT Time

13 Diagnostic approach c td Only recent interest into normal counterparts of PTCL tumor cells. Methodological problems Conceptual problems ( mycosis fungoides, extranodal T/NK cell lymphomas): overinterpretation of clinical features? No relevance for treatment??

14 A practical problem in peripheral T cell Lymphomas (PTCL-NOS)

15 PTCL-NOS What T cell suopulation is the tumor cell? CD4-.jpg CD4 Proliferation CD8

16 In some tumors ( esp. certain malignant lymphomas) most cells are reactive concomitant infiltrates: Hodgkin Lymphomas, T cell rich B cell lymphomas, most peripheral T cell lymphomas

17 PTCL-NOS contain many reactive T cells T- cell rich T cell lymphomas The identification of neoplastic cells in peripheral T cell lymphomas within biopsies is still very unprecise! Methodological solution : Identification of tumor cell clone Functional characterization of neoplastic cells

18 Each T cell has an idiotypic T cell receptor: Genetic polymorphism and organization of the TCR b gene family Vß Vß Vßn Dß Jß Cß Dß Jß Cß 65 Vb segments; 47 functional; 5 Vb -families Rearrangement Vß9 Dß Jß CDR Complex Cß Expression T-cell

19 . Step: Definition of the TCRb segment in the lymphoma tissue: Vß Vß Vßn Dß Jß Cß Dß Jß 5 Vß primer Jß primer Jß primer Cß 5 PCR reactions V V6 4 V 4 V V V7 4 V 4 V V V8 4 V 4 V V4 4 V 4 4 V V V V5 4 V V 5 V 4 5 V 4 5 V V4 5 4 V5. Step: Detection of the specific TCRb segment in by IHC : IHC and double staining by LSM TCRVb CD4 CD T-cell Geissinger E et al: J Mol Diagn; 5

20 TCRVb PTCL-NOS

21 TCRVb CD45RA - PTCL-NOS

22 PTCL-NOS - subset TCRVb CD45R + TCRVb CD45RA CD7 + TCRVb CCR7 +

23 Differentiation pathway of mature T cells CD45RA + CD45R CD7 + CCR7 + L y m p h CCR7 + Non effector CD45RA CD45R + CD7 + CCR7 + Central memory cell T naïve N o d e CCR7 Effector FAS Effector memory cell CD45RA /+ CD45R +/ CD7 CCR7 BCL- Adapted from: Sallusto et al: Annu Rev Immunol. 4;:745-6

24 (ALCL) 8 (ALCL) (ALCL) (ALCL) 4 (ALCL) 9 (ALCL) 8 (ALCL) (ALCL) (ALCL) (ALCL) (ALCL) 9 (ALCL) 5 (ALCL) 6 (ALCL) 7 (ALCL) (NOS) 5 (NOS) 7 (NOS) (NOS) 6 (NOS) 4 (NOS) 9 (NOS) 8 (NOS) (AILT) 7 (AILT) 5 (AILT) 6 (AILT) (AILT) 4 (AILT) (AILT) Cluster Analyse CCR4 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CXCR -,5,5 -,5 -,5 -,5,5,5,5,5,5 -,5,5 -,5,5,5,5 -,5,5,5 -,5,5 -,5,5 -,5,5 -,5,5,5 -,5,5 GrB,5 -,5 -,5 -,5 -,5,5 -,5,5 -,5,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 TIA,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 CD8 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD5,5,5,5,5,5,5 -,5,5 -,5 -,5 -,5,5 -,5 -,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 HLA-DR,5,5,5,5,5,5,5,5,5,5,5,5,5 -,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 Perforin,5 -,5,5,5 -,5,5,5,5,5,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 FASL -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 FAS -,5,5,5 -,5,5 -,5,5 -,5 -,5 -,5,5 -,5,5,5 -,5,5,5,5,5,5 -,5,5,5,5,5,5,5,5,5,5 CD69 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5 -,5 -,5,5 -,5 -,5 -,5,5,5 -,5,5,5 CTLA-4 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5 -,5,5,5,5 CD4 -,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5,5,5,5,5,5,5 -,5 BCL -,5,5 -,5 -,5 -,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5,5 -,5,5,5,5,5,5 -,5 CD7 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CCR7 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD8 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5,5 -,5,5,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 CD45R -,5,5,5,5,5,5,5 -,5 -,5,5,5 -,5 -,5 -,5,5 -,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 CD45RA -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 negative <%positive -8% positive >8% positive Geissinger E et al. J Pathol 6; :7

25 (ALCL) 8 (ALCL) (ALCL) (ALCL) 4 (ALCL) Nodal PTCL are derived from Antigen-experienced cells 9 (ALCL) 8 (ALCL) (ALCL) (ALCL) (ALCL) (ALCL) 9 (ALCL) 5 (ALCL) 6 (ALCL) 7 (ALCL) (NOS) 5 (NOS) 7 (NOS) (NOS) 6 (NOS) 4 (NOS) 9 (NOS) 8 (NOS) (AILT) 7 (AILT) 5 (AILT) 6 (AILT) (AILT) 4 (AILT) (AILT) CCR4 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CXCR -,5,5 -,5 -,5 -,5,5,5,5,5,5 -,5,5 -,5,5,5,5 -,5,5,5 -,5,5 -,5,5 -,5,5 -,5,5,5 -,5,5 GrB,5 -,5 -,5 -,5 -,5,5 -,5,5 -,5,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 TIA,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 CD8 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD5,5,5,5,5,5,5 -,5,5 -,5 -,5 -,5,5 -,5 -,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 HLA-DR,5,5,5,5,5,5,5,5,5,5,5,5,5 -,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 Perforin,5 -,5,5,5 -,5,5,5,5,5,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 FASL -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 FAS -,5,5,5 -,5,5 -,5,5 -,5 -,5 -,5,5 -,5,5,5 -,5,5,5,5,5,5 -,5,5,5,5,5,5,5,5,5,5 CD69 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5 -,5 -,5,5 -,5 -,5 -,5,5,5 -,5,5,5 CTLA-4 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5 -,5,5,5,5 CD4 -,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5,5,5,5,5,5,5 -,5 BCL -,5,5 -,5 -,5 -,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5,5 -,5,5,5,5,5,5 -,5 CD7 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CCR7 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD8 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5,5 -,5,5,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 CD45R -,5,5,5,5,5,5,5 -,5 -,5,5,5 -,5 -,5 -,5,5 -,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 CD45RA -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 negative <%positive -8% positive >8% positive

26 (ALCL) 8 (ALCL) (ALCL) (ALCL) 4 (ALCL) 9 (ALCL) 8 (ALCL) (ALCL) (ALCL) (ALCL) (ALCL) 9 (ALCL) 5 (ALCL) 6 (ALCL) 7 (ALCL) (NOS) 5 (NOS) 7 (NOS) (NOS) 6 (NOS) 4 (NOS) 9 (NOS) 8 (NOS) (AILT) 7 (AILT) 5 (AILT) 6 (AILT) (AILT) 4 (AILT) (AILT) A subset of PTCL-NOS is derived from central memory cells CCR4 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CXCR -,5,5 -,5 -,5 -,5,5,5,5,5,5 -,5,5 -,5,5,5,5 -,5,5,5 -,5,5 -,5,5 -,5,5 -,5,5,5 -,5,5 GrB,5 -,5 -,5 -,5 -,5,5 -,5,5 -,5,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 TIA,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 CD8 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD5,5,5,5,5,5,5 -,5,5 -,5 -,5 -,5,5 -,5 -,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 HLA-DR,5,5,5,5,5,5,5,5,5,5,5,5,5 -,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 Perforin,5 -,5,5,5 -,5,5,5,5,5,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 FASL -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 FAS -,5,5,5 -,5,5 -,5,5 -,5 -,5 -,5,5 -,5,5,5 -,5,5,5,5,5,5 -,5,5,5,5,5,5,5,5,5,5 CD69 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5 -,5 -,5,5 -,5 -,5 -,5,5,5 -,5,5,5 CTLA-4 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5 -,5,5,5,5 CD4 -,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5,5,5,5,5,5,5 -,5 BCL -,5,5 -,5 -,5 -,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5,5 -,5,5,5,5,5,5 -,5 CD7 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CCR7 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD8 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5,5 -,5,5,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 CD45R -,5,5,5,5,5,5,5 -,5 -,5,5,5 -,5 -,5 -,5,5 -,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 CD45RA -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 negative <%positive -8% positive >8% positive

27 (ALCL) 8 (ALCL) (ALCL) (ALCL) 4 (ALCL) 9 (ALCL) 8 (ALCL) (ALCL) (ALCL) (ALCL) (ALCL) 9 (ALCL) 5 (ALCL) 6 (ALCL) 7 (ALCL) (NOS) 5 (NOS) 7 (NOS) (NOS) 6 (NOS) 4 (NOS) 9 (NOS) 8 (NOS) (AILT) 7 (AILT) 5 (AILT) 6 (AILT) (AILT) 4 (AILT) (AILT) AILT and ALCL are derived from different subsets of effector cells CCR4 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CXCR -,5,5 -,5 -,5 -,5,5,5,5,5,5 -,5,5 -,5,5,5,5 -,5,5,5 -,5,5 -,5,5 -,5,5 -,5,5,5 -,5,5 GrB,5 -,5 -,5 -,5 -,5,5 -,5,5 -,5,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 TIA,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 CD8 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD5,5,5,5,5,5,5 -,5,5 -,5 -,5 -,5,5 -,5 -,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 HLA-DR,5,5,5,5,5,5,5,5,5,5,5,5,5 -,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 Perforin,5 -,5,5,5 -,5,5,5,5,5,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 FASL -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 FAS -,5,5,5 -,5,5 -,5,5 -,5 -,5 -,5,5 -,5,5,5 -,5,5,5,5,5,5 -,5,5,5,5,5,5,5,5,5,5 CD69 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5 -,5 -,5,5 -,5 -,5 -,5,5,5 -,5,5,5 CTLA-4 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5 -,5,5,5,5 CD4 -,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5,5,5,5,5,5,5 -,5 BCL -,5,5 -,5 -,5 -,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5,5 -,5,5,5,5,5,5 -,5 CD7 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CCR7 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5,5,5,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 CD8 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5,5 -,5,5,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 CD45R -,5,5,5,5,5,5,5 -,5 -,5,5,5 -,5 -,5 -,5,5 -,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 CD45RA -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 -,5 negative <%positive -8% positive >8% positive

28 CD45RA + CD45R CD7 + CCR7 + L y m p h CCR7 + Non effector Central memory cell PTCL-NOS subset CD45RA CD45R + CD7 + CCR7 + T naïve N Effector memory cell o d e CCR7 Effector Angioimmunoblastic T-cell lymphoma Anaplastic large cell lymphoma CD45RA /+ CD45R +/ CD7 CCR7

29 Workshop Case No. (H9567/8) Age Sex Localization Clinical data 87 years female inguinal lymph node CT: supra- and infradiafragmental lymphadenopathy. Unsuspicious spleen.

30

31

32

33

34

35

36 Case No. 4 - phenotype Tumor cells: Background infiltrate: TCRg clonality assay: CD+, CD+, CD5+, CD4+ CD7 partial+ PD+ CD+ CD5+ polyclonal plasma cells (k/l) CD+ FDC networks EBER+ B-cells monoclonal

37 CD

38 CD

39 PD

40 PD

41

42

43 Roncador, G. et al. Haematologica 7;9:59-66

44 KI 67

45 CD

46 LMP

47 EBER

48 CD

49 Diagnosis H9567-8: Angioimmunoblastic T Cell Lymphoma ( AILT) EBV related B LPD?

50 AILT Diagnostic criteria Clinics Systemic disease Morphology Polymorphous infiltrate High endothelial venules Follicular dendritic cells Molcular data TCR rearrangement not of prognostic value Immunophenotype EBV-infected B-cells in the background

51 Proportion Overall and Failure-free Survival. Angioimmunoblastic Cases Time CENSOR FAIL TOTAL MEDIAN FFS OAS

52 Angioimmunoblastic T-cell lymphoma CD

53 Angioimmunoblastic T-cell lymphoma CD

54 Angioimmunoblastic T-cell lymphoma CD CD

55 Angioimmunoblastic T-cell lymphoma CD4 CD8

56 AILT-secondary B-cell proliferations CD

57 CD LMP

58

59 > 8 % positiv () -8 % positiv () < % positiv () negativ () PD ICOS CXCR5 CCR7 Bcl6 Bcl Fas CD - NOS* 6- NOS 9- NOS - NOS 8- NOS - NOS 7- NOS - NOS* 5- NOS 4- AILT 5- AILT 8- AILT 9- AILT - AILT - AILT - AILT 6- AILT 7- AILT - pf. T-NHL - AILT Cluster-Analysis of T FH Markers on tumor cells of nodal PTCL AILT PTCL-NOS

60 > 8 % positiv () -8 % positiv () < % positiv () negativ () PD ICOS CXCR5 CCR7 Bcl6 Bcl Fas CD - NOS* 6- NOS 9- NOS - NOS 8- NOS - NOS 7- NOS - NOS* 5- NOS 4- AILT 5- AILT 8- AILT 9- AILT - AILT - AILT - AILT 6- AILT 7- AILT - pf. T-NHL - AILT Cluster-Analysis of T FH Markers on tumor cells of nodal PTCL AILT PTCL-NOS

61

62 PD Vb AILT PTCL-NOS PD Vb

63

64 Angioimmunoblastic T cell Lymphoma AILT and Follicular/ Perifollicular T Cell Lymphoma are derived from Follicular T Helper Cells

65 CD45RA + CD45R CD7 + CCR7 + L y m p h CCR7 + Non effector CD45RA CD45R + CD7 + CCR7 + Follicular TH Cell lymphoma- Variant of PTCL-NOS T naïve N Effector memory cell o d e CCR7 Effector Angioimmunoblastic T Cell Lymphoma AILT CD45RA /+ CD45R +/ CD7 CCR7

66 Literature Zettl A, Lee SS, Rüdiger T, et al. Epstein-Barr virus-associated B-cell lymphoproliferative disorders in angloimmunoblastic T-cell lymphoma and peripheral T-cell lymphoma, unspecified. Am J Clin Pathol. ;7(): de Leval L, Gisselbrecht C, Gaulard P. Advances in the understanding and management of angioimmunoblastic T-cell lymphoma. Br J Haematol. ;48(5): Federico M, Rüdiger T, Bellei M, et al. Clinicopathologic Characteristics of Angioimmunoblastic T-Cell Lymphoma: Analysis of the International Peripheral T-Cell Lymphoma Project. J Clin Oncol.. Leich E, Haralambieva E, Zettl A, et al. Tissue microarray-based screening for chromosomal breakpoints affecting the T-cell receptor gene loci in mature T-cell lymphomas. J Pathol. 7;():99-5. Rüdiger T, Zettl A, Adam P, Bonzheim I, Geissinger E, Muller-Hermelink HK. Periphere NK/T-Zell Lymphome. Pathologe. 7;8(): Geissinger E, Bonzheim I, Krenacs L, et al. Nodal peripheral T-cell lymphomas correspond to distinct mature T-cell populations. J Pathol. 6;():7-8.

67 Literature c td Rüdiger T, Geissinger E, Müller-Hermelink HK. 'Normal counterparts' of nodal peripheral T-cell lymphoma. Hematol Oncol. 6;4(4):75-8. Reimer P, Rudiger T, Wilhelm M. The role of high-dose therapy in peripheral T-cell lymphomas. Clin Lymphoma Myeloma. 6;6(5):7-79. Geissinger E, Bonzheim I, Krenacs L, et al. Identification of the tumor cells in peripheral T-cell lymphomas by combined polymerase chain reaction-based T-cell receptor beta spectrotyping and immunohistological detection with T-cell receptor beta chain variable region segment-specific antibodies. J Mol Diagn. 5;7(4): Geissinger E, Odenwald T, Lee SS, et al. Nodal peripheral T-cell lymphomas and, in particular, their lymphoepithelioid (Lennert's) variant are often derived from CD8(+) cytotoxic T-cells. Virchows Arch. 4;445(4):4-4. Rüdiger T, Weisenburger DD, Anderson JR, et al. Peripheral T-cell lymphoma (excluding anaplastic large-cell lymphoma): results from the Non-Hodgkin's Lymphoma Classification Project. Ann Oncol. ;():4-49. Rüdiger T, Ichinohasama R, Ott MM, et al. Peripheral T-cell lymphoma with distinct perifollicular growth pattern: a distinct subtype of T-cell lymphoma? Am J Surg Pathol. ;4():7-.

Methods used to diagnose lymphomas

Methods used to diagnose lymphomas Institut für Pathologie Institut für Pathologie Methods used to diagnose lymphomas Prof. Dr.Med. Leticia Quintanilla-Fend Molecular techniques NGS histology Cytology AS-PCR Sanger seq. MYC Immunohistochemistry

More information

88-year-old Female with Lymphadenopathy. Faizi Ali, MD

88-year-old Female with Lymphadenopathy. Faizi Ali, MD 88-year-old Female with Lymphadenopathy Faizi Ali, MD Clinical History A 88-year-old caucasian female presented to our hospital with the complaints of nausea, vomiting,diarrhea, shortness of breath and

More information

T cell lymphoma diagnostics and differential diagnosis to Hodgkin lymphoma

T cell lymphoma diagnostics and differential diagnosis to Hodgkin lymphoma T cell lymphoma diagnostics and differential diagnosis to Hodgkin lymphoma Sylvia Hartmann Dr. Senckenberg Institute of Pathology Goethe University Frankfurt Overview Borderline ALCL classical HL Borderline

More information

Immunopathology of Lymphoma

Immunopathology of Lymphoma Immunopathology of Lymphoma Noraidah Masir MBBCh, M.Med (Pathology), D.Phil. Department of Pathology Faculty of Medicine Universiti Kebangsaan Malaysia Lymphoma classification has been challenging to pathologists.

More information

Peripheral T-cell lymphomas

Peripheral T-cell lymphomas XXXVI REUNIÓN ANUAL Peripheral T-cell lymphomas Dr. Antonio Martinez Hospital Clinic, University ofbarcelona antonmar@clinic.ub.es Madrid, February 8th, 2013 T-NHL vs B-NHL: the T-cell paradigm lambda

More information

Peripheral T-cell Lymphomas. Current Classification and Differential Diagnosis. Elaine S Jaffe, M.D.

Peripheral T-cell Lymphomas. Current Classification and Differential Diagnosis. Elaine S Jaffe, M.D. Peripheral T-cell Lymphomas Current Classification and Differential Diagnosis Elaine S Jaffe, M.D. International T-cell Lymphoma. Study: Frequency of Subtypes Study limited to adults JCO 2008;26:4124-4130

More information

Common Problem Areas. WHO Classification. Defines separate diseases (entities) with their CLINICAL AGGRESSIVENESS LOW GRADE / HIGH GRADE

Common Problem Areas. WHO Classification. Defines separate diseases (entities) with their CLINICAL AGGRESSIVENESS LOW GRADE / HIGH GRADE WHO Classification Defines separate diseases (entities) with their CLINICAL AGGRESSIVENESS REVIEW OF MOST COMMON LYMPHOMA ENTITIES Dr Stefan Dojcinov LOW GRADE / HIGH GRADE (June 2014) The Non-Hodgkin

More information

Commentary on the 2008 WHO classification of mature T- and NK-cell neoplasms

Commentary on the 2008 WHO classification of mature T- and NK-cell neoplasms J Hematopathol (2009) 2:65 73 DOI 10.1007/s12308-009-0034-z COMMENT Commentary on the 2008 WHO classification of mature T- and NK-cell neoplasms Megan S. Lim & Laurence de Leval & Leticia Quintanilla-Martinez

More information

Lymphoma/CLL 101: Know your Subtype. Dr. David Macdonald Hematologist, The Ottawa Hospital

Lymphoma/CLL 101: Know your Subtype. Dr. David Macdonald Hematologist, The Ottawa Hospital Lymphoma/CLL 101: Know your Subtype Dr. David Macdonald Hematologist, The Ottawa Hospital Function of the Lymph System Lymph Node Lymphocytes B-cells develop in the bone marrow and influence the immune

More information

Lymphoma Update: Lymphoma Update: What s Likely to be New in the New WHO. Patrick Treseler, MD, PhD University of California San Francisco

Lymphoma Update: Lymphoma Update: What s Likely to be New in the New WHO. Patrick Treseler, MD, PhD University of California San Francisco Lymphoma Update: What s Likely to be New in the New WHO Blood 127:2375; 2016 Patrick Treseler, MD, PhD University of California San Francisco Lymphoma Update: What IS New in the New WHO! Patrick Treseler,

More information

Unusual cutaneous presentation of a T-cell lymphoproliferation

Unusual cutaneous presentation of a T-cell lymphoproliferation Department of Pathology and Cytology University Hospital Centre Zagreb, Croatia Unusual cutaneous presentation of a T-cell lymphoproliferation Snjezana Dotlic, Stefan Dojcinov, Leticia Quintanilla-Fend

More information

Recent diagnostic and therapeutic innovations of T-cell-lymphoma. Prof. Nossrat Firusian, Recklinghausen, Germany

Recent diagnostic and therapeutic innovations of T-cell-lymphoma. Prof. Nossrat Firusian, Recklinghausen, Germany Recent diagnostic and therapeutic innovations of T-cell-lymphoma Prof. Nossrat Firusian, Recklinghausen, Germany NODAL Angioimmunoblastic T-cell Lymphoma Peripheral T-cell-Lymphoma Anaplastic Large-cell-Lymphoma

More information

Contents. vii. Preface... Acknowledgments... v xiii

Contents. vii. Preface... Acknowledgments... v xiii Contents Preface... Acknowledgments... v xiii SECTION I 1. Introduction... 3 Knowledge-Based Diagnosis... 4 Systematic Examination of the Lymph Node... 7 Cell Type Identification... 9 Cell Size and Cellularity...

More information

Non-Hodgkin s Lymphomas Version

Non-Hodgkin s Lymphomas Version NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines ) Non-Hodgkin s Lymphomas Version 2.2015 NCCN.org Continue Use of Immunophenotyping/ Genetic Testing in Differential Diagnosis of Mature B-Cell

More information

WHO Classification. B-cell chronic lymphocytic leukemia/small T-cell granular lymphocytic leukemia

WHO Classification. B-cell chronic lymphocytic leukemia/small T-cell granular lymphocytic leukemia Blood Malignancies-II Prof. Dr. Herman Hariman, a Ph.D, SpPK (KH). Prof. Dr. Adikoesoema Aman, SpPK (KH) Dept. of Clinical Pathology, School of Medicine, University of North Sumatra WHO classification

More information

What s new on the horizon in T-cell lymphoma Elaine S Jaffe National Cancer Institute, Bethesda MD

What s new on the horizon in T-cell lymphoma Elaine S Jaffe National Cancer Institute, Bethesda MD What s new on the horizon in T-cell lymphoma Elaine S Jaffe National Cancer Institute, Bethesda MD WHO classification: where are we today? Of 12 monographs planned for 4 th Edition Bluebook series, only

More information

Hepatic Lymphoma Diagnosis An Algorithmic Approach

Hepatic Lymphoma Diagnosis An Algorithmic Approach Hepatic Lymphoma Diagnosis An Algorithmic Approach Ryan M. Gill, M.D., Ph.D. University of California, San Francisco PLEASE TURN OFF YOUR CELL PHONES Disclosure of Relevant Financial Relationships USCAP

More information

Effector T Cells and

Effector T Cells and 1 Effector T Cells and Cytokines Andrew Lichtman, MD PhD Brigham and Women's Hospital Harvard Medical School 2 Lecture outline Cytokines Subsets of CD4+ T cells: definitions, functions, development New

More information

SH/EAHP Workshop 2011 Los Angeles, California, USA

SH/EAHP Workshop 2011 Los Angeles, California, USA SH/EAHP Workshop 2011 Los Angeles, California, USA October 27-29, 2011 Session 3 Non-Mycosis Fungoides CTCL Patty Jansen & Rein Willemze Introduction Submitted: 101 cases + 7 cases group 1: 108 Deactivated

More information

ECP meeting, Lisbon, september 2012 Slide seminar New and old challenges in the diagnosis of peripheral T-cell lymphomas

ECP meeting, Lisbon, september 2012 Slide seminar New and old challenges in the diagnosis of peripheral T-cell lymphomas ECP meeting, Lisbon, september 2012 Slide seminar New and old challenges in the diagnosis of peripheral T-cell lymphomas Philippe Gaulard, Dept of Pathology, INSERM U955, Hôpital Henri Mondor, 94010 -

More information

Lymphoma: What You Need to Know. Richard van der Jagt MD, FRCPC

Lymphoma: What You Need to Know. Richard van der Jagt MD, FRCPC Lymphoma: What You Need to Know Richard van der Jagt MD, FRCPC Overview Concepts, classification, biology Epidemiology Clinical presentation Diagnosis Staging Three important types of lymphoma Conceptualizing

More information

Non-Hodgkin Lymphoma. Protocol applies to non-hodgkin lymphoma involving any organ system except the gastrointestinal tract.

Non-Hodgkin Lymphoma. Protocol applies to non-hodgkin lymphoma involving any organ system except the gastrointestinal tract. Non-Hodgkin Lymphoma Protocol applies to non-hodgkin lymphoma involving any organ system except the gastrointestinal tract. Protocol revision date: January 2005 No AJCC/UICC staging system Procedures Cytology

More information

Lymphoma: The Basics. Dr. Douglas Stewart

Lymphoma: The Basics. Dr. Douglas Stewart Lymphoma: The Basics Dr. Douglas Stewart Objectives What is lymphoma? How common is it? Why does it occur? How do you diagnose it? How do you manage it? How do you follow patients after treatment? What

More information

Immunohistochemical classification of haematolymphoid tumours. Stephen Hamilton-Dutoit Institute of Pathology Aarhus University Hospital

Immunohistochemical classification of haematolymphoid tumours. Stephen Hamilton-Dutoit Institute of Pathology Aarhus University Hospital Immunohistochemical classification of haematolymphoid tumours Stephen Hamilton-Dutoit Institute of Pathology Aarhus University Hospital Malignant lymphoproliferative diseases What are they? Haematolymphoid

More information

2010 Hematopoietic and Lymphoid ICD-O Codes - Alphabetical List THIS TABLE REPLACES ALL ICD-O-3 Codes

2010 Hematopoietic and Lymphoid ICD-O Codes - Alphabetical List THIS TABLE REPLACES ALL ICD-O-3 Codes Acute basophilic leukemia 9870/3 Acute biphenotypic leukemia [OBS] 9805/3 Acute erythroid leukemia 9840/3 Acute megakaryoblastic leukemia 9910/3 Acute monoblastic and monocytic leukemia 9891/3 Acute myeloid

More information

2012 Hematopoietic and Lymphoid ICD-O Codes - Numerical List THIS TABLE REPLACES ALL ICD-O-3 Codes

2012 Hematopoietic and Lymphoid ICD-O Codes - Numerical List THIS TABLE REPLACES ALL ICD-O-3 Codes Malignant lymphoma, NOS 9590/3 Non-Hodgkin lymphoma, NOS 9591/3 B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma and classical Hodgkin lymphoma 9596/3 Primary

More information

Differential diagnosis of hematolymphoid tumors composed of medium-sized cells. Brian Skinnider B.C. Cancer Agency, Vancouver General Hospital

Differential diagnosis of hematolymphoid tumors composed of medium-sized cells. Brian Skinnider B.C. Cancer Agency, Vancouver General Hospital Differential diagnosis of hematolymphoid tumors composed of medium-sized cells Brian Skinnider B.C. Cancer Agency, Vancouver General Hospital Lymphoma classification Lymphoma diagnosis starts with morphologic

More information

Combinations of morphology codes of haematological malignancies (HM) referring to the same tumour or to a potential transformation

Combinations of morphology codes of haematological malignancies (HM) referring to the same tumour or to a potential transformation Major subgroups according to the World Health Organisation (WHO) Classification Myeloproliferative neoplasms (MPN) Myeloid and lymphoid neoplasms with eosinophilia and abnormalities of PDGFRA, PDGFRB or

More information

Large cell immunoblastic Diffuse histiocytic (DHL) Lymphoblastic lymphoma Diffuse lymphoblastic Small non cleaved cell Burkitt s Non- Burkitt s

Large cell immunoblastic Diffuse histiocytic (DHL) Lymphoblastic lymphoma Diffuse lymphoblastic Small non cleaved cell Burkitt s Non- Burkitt s Non Hodgkin s Lymphoma Introduction 6th most common cause of cancer death in United States. Increasing in incidence and mortality. Since 1970, the incidence of has almost doubled. Overview The types of

More information

The development of T cells in the thymus

The development of T cells in the thymus T cells rearrange their receptors in the thymus whereas B cells do so in the bone marrow. The development of T cells in the thymus The lobular/cellular organization of the thymus Immature cells are called

More information

5/1/13. The proportion of thymus that produces T cells decreases with age. The cellular organization of the thymus

5/1/13. The proportion of thymus that produces T cells decreases with age. The cellular organization of the thymus T cell precursors migrate from the bone marrow via the blood to the thymus to mature 1 2 The cellular organization of the thymus The proportion of thymus that produces T cells decreases with age 3 4 1

More information

3.1 Introduction. It is emphasised that not all tests are necessarily required in every case. 3.2 Taxonomic structure

3.1 Introduction. It is emphasised that not all tests are necessarily required in every case. 3.2 Taxonomic structure CHAPTER 3 CLASSIFICATION 3.1 Introduction Accurate diagnosis underpins lymphoma management. Historically, competing lymphoma classifications have been a source of frustration to pathologists, clinicians

More information

Integrated Hematopathology. Morphology and FCI with IHC

Integrated Hematopathology. Morphology and FCI with IHC Integrated Hematopathology Morphology and FCI with IHC FrontMatter.indd i 9/6/2009 9:30:12 PM FrontMatter.indd ii 9/6/2009 9:30:18 PM Integrated Hematopathology Morphology and FCI with IHC Cherie H Dunphy,

More information

Defined lymphoma entities in the current WHO classification

Defined lymphoma entities in the current WHO classification Defined lymphoma entities in the current WHO classification Luca Mazzucchelli Istituto cantonale di patologia, Locarno Bellinzona, January 29-31, 2016 Evolution of lymphoma classification Rappaport Lukes

More information

Abstract. ) type 1 (T H. 1) and 2 (T H

Abstract. ) type 1 (T H. 1) and 2 (T H Hematopathology / Master Regulators of T h Expression of Master Regulators of Helper T-Cell Differentiation in Peripheral T-Cell Lymphoma, Not Otherwise Specified, by Immunohistochemical Analysis Yosuke

More information

Lymphoid Neoplasms. Sylvie Freeman Department of Clinical Immunology, University of Birmingham

Lymphoid Neoplasms. Sylvie Freeman Department of Clinical Immunology, University of Birmingham Lymphoid Neoplasms Sylvie Freeman Department of Clinical Immunology, University of Birmingham Incidence of Haematological Malignancies UK2001 (CRUK) Malignancy New Cases All Cancers 271,000 Leukaemia 6,760

More information

Adaptive (acquired) immunity. Professor Peter Delves University College London

Adaptive (acquired) immunity. Professor Peter Delves University College London Adaptive (acquired) immunity Professor Peter Delves University College London p.delves@ucl.ac.uk Haematopoiesis Haematopoiesis Lymphocytes = adaptive response Recognition of pathogens by adaptive cells,

More information

7 Omar Abu Reesh. Dr. Ahmad Mansour Dr. Ahmad Mansour

7 Omar Abu Reesh. Dr. Ahmad Mansour Dr. Ahmad Mansour 7 Omar Abu Reesh Dr. Ahmad Mansour Dr. Ahmad Mansour -Leukemia: neoplastic leukocytes circulating in the peripheral bloodstream. -Lymphoma: a neoplastic process in the lymph nodes, spleen or other lymphatic

More information

During past decades, because of the lack of knowledge

During past decades, because of the lack of knowledge Staging and Classification of Lymphoma Ping Lu, MD In 2004, new cases of non-hodgkin s in the United States were estimated at 54,370, representing 4% of all cancers and resulting 4% of all cancer deaths,

More information

Molecular Pathology of Lymphoma (Part 1) Rex K.H. Au-Yeung Department of Pathology, HKU

Molecular Pathology of Lymphoma (Part 1) Rex K.H. Au-Yeung Department of Pathology, HKU Molecular Pathology of Lymphoma (Part 1) Rex K.H. Au-Yeung Department of Pathology, HKU Lecture outline Time 10:00 11:00 11:15 12:10 12:20 13:15 Content Introduction to lymphoma Review of lymphocyte biology

More information

Bone Marrow. Procedures Blood Film Aspirate, Cell Block Trephine Biopsy, Touch Imprint

Bone Marrow. Procedures Blood Film Aspirate, Cell Block Trephine Biopsy, Touch Imprint Bone Marrow Protocol applies to acute leukemias, myelodysplastic syndromes, myeloproliferative disorders, chronic lymphoproliferative disorders, malignant lymphomas, plasma cell dyscrasias, histiocytic

More information

Primary Cutaneous CD30-Positive T-cell Lymphoproliferative Disorders

Primary Cutaneous CD30-Positive T-cell Lymphoproliferative Disorders Primary Cutaneous CD30-Positive T-cell Lymphoproliferative Disorders Definition A spectrum of related conditions originating from transformed or activated CD30-positive T-lymphocytes May coexist in individual

More information

Defensive mechanisms include :

Defensive mechanisms include : Acquired Immunity Defensive mechanisms include : 1) Innate immunity (Natural or Non specific) 2) Acquired immunity (Adaptive or Specific) Cell-mediated immunity Humoral immunity Two mechanisms 1) Humoral

More information

HODGKIN LYMPHOMA DR. ALEJANDRA ZARATE OSORNO HOSPITAL ESPAÑOL DE MEXICO

HODGKIN LYMPHOMA DR. ALEJANDRA ZARATE OSORNO HOSPITAL ESPAÑOL DE MEXICO HODGKIN LYMPHOMA DR. ALEJANDRA ZARATE OSORNO HOSPITAL ESPAÑOL DE MEXICO HODGKIN LYMPHOMA CLASSIFICATION Lukes & Butler Rye WHO-2016 Linphocytic and/or histiocytic Nodular & diffuse Nodular Sclerosis Lymphocyte

More information

Classifications of lymphomas

Classifications of lymphomas Classifications of lymphomas Lukes and Collins Kiel classification Working formulation REAL classification (1994) WHO classification (2000) WHO CLASSIFICATIONF OF NEOPLASMS HAEMATOPETIC AND LYMPHOID TISSUES

More information

10/31/2017. Immunodeficiencies. Outline. Discuss EBV. Non-destructive Polymorphic Monomorphic Therapies Challenges

10/31/2017. Immunodeficiencies. Outline. Discuss EBV. Non-destructive Polymorphic Monomorphic Therapies Challenges I have no financial disclosures Joo Y. Song, MD Assistant Professor of Clinical Pathology City of Hope National Medical Center Immunodeficiencies Outline Transplant Congenital Autoimmunity T-cell/immune

More information

11/2/2017. Immunodeficiencies. Joo Y. Song, MD Assistant Professor of Clinical Pathology. I have no financial disclosures.

11/2/2017. Immunodeficiencies. Joo Y. Song, MD Assistant Professor of Clinical Pathology. I have no financial disclosures. I have no financial disclosures Joo Y. Song, MD Assistant Professor of Clinical Pathology City of Hope National Medical Center Immunodeficiencies Transplant Autoimmunity Drugs T-cell dysfunction (Age,

More information

Methotrexate-associated Lymphoproliferative Disorders

Methotrexate-associated Lymphoproliferative Disorders Methotrexate-associated Lymphoproliferative Disorders Definition A lymphoid proliferation or lymphoma in a patient immunosuppressed with methotrexate, typically for treatment of autoimmune disease (rheumatoid

More information

Changing the landscape of treatment in Peripheral T-cell Lymphoma

Changing the landscape of treatment in Peripheral T-cell Lymphoma Changing the landscape of treatment in Peripheral T-cell Lymphoma Luis Fayad Associate Professor MD Anderson Cancer Center Department of Lymphoma and Myeloma 1 6 What is peripheral 2008 WHO CLASSIFICATION

More information

T-cell Lymphomas: Diagnosis and New Agents. Mary Jo Lechowicz Thursday, July 27 Debates and Didactics in Hematology and Oncology

T-cell Lymphomas: Diagnosis and New Agents. Mary Jo Lechowicz Thursday, July 27 Debates and Didactics in Hematology and Oncology T-cell Lymphomas: Diagnosis and New Agents Mary Jo Lechowicz Thursday, July 27 Debates and Didactics in Hematology and Oncology 1 Mature T and NK-cell neoplasms in the WHO Classification 2016 revision

More information

Scott Abrams, Ph.D. Professor of Oncology, x4375 Kuby Immunology SEVENTH EDITION

Scott Abrams, Ph.D. Professor of Oncology, x4375 Kuby Immunology SEVENTH EDITION Scott Abrams, Ph.D. Professor of Oncology, x4375 scott.abrams@roswellpark.org Kuby Immunology SEVENTH EDITION CHAPTER 13 Effector Responses: Cell- and Antibody-Mediated Immunity Copyright 2013 by W. H.

More information

Michi Shinohara MD Associate Professor University of Washington/Seattle Cancer Care Alliance Dermatology, Dermatopathology

Michi Shinohara MD Associate Professor University of Washington/Seattle Cancer Care Alliance Dermatology, Dermatopathology Michi Shinohara MD Associate Professor University of Washington/Seattle Cancer Care Alliance Dermatology, Dermatopathology Agenda Overview of cutaneous T and B- cell lymphomas Diagnosis, Staging, Prognosis

More information

Non-Hodgkin lymphomas (NHLs) Hodgkin lymphoma )HL)

Non-Hodgkin lymphomas (NHLs) Hodgkin lymphoma )HL) Non-Hodgkin lymphomas (NHLs) Hodgkin lymphoma )HL) Lymphoid Neoplasms: 1- non-hodgkin lymphomas (NHLs) 2- Hodgkin lymphoma 3- plasma cell neoplasms Non-Hodgkin lymphomas (NHLs) Acute Lymphoblastic Leukemia/Lymphoma

More information

The History of Lymphoma Classification and the 2017 Revision

The History of Lymphoma Classification and the 2017 Revision The History of Lymphoma Classification and the 2017 Revision ESMO Perceptorship on Lymphoma, Lugano 2018 German Ott Department of Clinical Pathology, Robert-Bosch-Krankenhaus and Dr. Margarete Fischer-Bosch

More information

Prognostic Factors for PTCL. Julie M. Vose, M.D., M.B.A. University of Nebraska Medical Center

Prognostic Factors for PTCL. Julie M. Vose, M.D., M.B.A. University of Nebraska Medical Center Prognostic Factors for PTCL Julie M. Vose, M.D., M.B.A. University of Nebraska Medical Center jmvose@unmc.edu Distribution of 1314 Cases by Consensus Diagnosis International T-Cell Lymphoma Project Vose

More information

Effector mechanisms of cell-mediated immunity: Properties of effector, memory and regulatory T cells

Effector mechanisms of cell-mediated immunity: Properties of effector, memory and regulatory T cells ICI Basic Immunology course Effector mechanisms of cell-mediated immunity: Properties of effector, memory and regulatory T cells Abul K. Abbas, MD UCSF Stages in the development of T cell responses: induction

More information

Classification! Immunohistochemical classification of haematolymphoid tumours. Malignant lymphoproliferative diseases

Classification! Immunohistochemical classification of haematolymphoid tumours. Malignant lymphoproliferative diseases Immunohistochemical classification of haematolymphoid tumours Haematolymphoid Neoplasias: Leukaemia vs Lymphoma C L O N A L M A L I G N A N C I E S Stephen Hamilton-Dutoit Institute of Pathology Aarhus

More information

Change Summary - Form 2018 (R3) 1 of 12

Change Summary - Form 2018 (R3) 1 of 12 Summary - Form 2018 (R3) 1 of 12 Form Question Number (r3) Type Description New Text Previous Text Today's date was removed 2018 N/A Today's Date Removed from Key Fields 2018 N/A HCT Type 2018 N/A Product

More information

Hematopoiesis. Hematopoiesis. Hematopoiesis

Hematopoiesis. Hematopoiesis. Hematopoiesis Chapter. Cells and Organs of the Immune System Hematopoiesis Hematopoiesis- formation and development of WBC and RBC bone marrow. Hematopoietic stem cell- give rise to any blood cells (constant number,

More information

Classification of Cutaneous T cell Lymphomas (CTCLs) Hernani Cualing, MD

Classification of Cutaneous T cell Lymphomas (CTCLs) Hernani Cualing, MD Classification of Cutaneous T cell Lymphomas (CTCLs) Hernani Cualing, MD Pathology and Cell Biology, USF IFLOW, Inc. CTCL, MF, and Sézary syndrome In 1806, mycosis fungoides (MF) was first described 1

More information

CASE 35 CLINICAL HISTORY

CASE 35 CLINICAL HISTORY Female, 24 Painful ulcerated lesion Left buttock Developed over a few weeks?abscess Excision CASE 35 CLINICAL HISTORY Two months later developed a similar lesion on right buttock CD30 CD3 CD4

More information

3/23/2017. Disclosure of Relevant Financial Relationships. Pitfalls in Immunohistochemistry in Hematopathology: CD20 and CD3 Can Let Me Down?!

3/23/2017. Disclosure of Relevant Financial Relationships. Pitfalls in Immunohistochemistry in Hematopathology: CD20 and CD3 Can Let Me Down?! Pitfalls in Immunohistochemistry in Hematopathology: CD20 and CD3 Can Let Me Down?! Judith A. Ferry Massachusetts General Hospital Disclosure of Relevant Financial Relationships USCAP requires that all

More information

The development of clonality testing for lymphomas in the Bristol Genetics Laboratory. Dr Paula Waits Bristol Genetics Laboratory

The development of clonality testing for lymphomas in the Bristol Genetics Laboratory. Dr Paula Waits Bristol Genetics Laboratory The development of clonality testing for lymphomas in the Bristol Genetics Laboratory Dr Paula Waits Bristol Genetics Laboratory Introduction The majority of lymphoid malignancies belong to the B cell

More information

Pathology of the indolent B-cell lymphomas Elias Campo

Pathology of the indolent B-cell lymphomas Elias Campo Pathology of the indolent B-cell lymphomas Elias Campo Hospital Clinic, University of Barcelona Small B-cell lymphomas Antigen selection NAIVE -B LYMPHOCYTE MEMORY B-CELL MCL FL LPL MZL CLL Small cell

More information

LESSON 2: THE ADAPTIVE IMMUNITY

LESSON 2: THE ADAPTIVE IMMUNITY Introduction to immunology. LESSON 2: THE ADAPTIVE IMMUNITY Today we will get to know: The adaptive immunity T- and B-cells Antigens and their recognition How T-cells work 1 The adaptive immunity Unlike

More information

T cell and Cell-mediated immunity

T cell and Cell-mediated immunity T cell and Cell-mediated immunity ( 第十章 第十二章第十二章 ) Lu Linrong ( 鲁林荣 ) PhD Laboratory of Immune Regulation Institute of Immunology Zhejiang University, School of Medicine Medical Research Building B815-819

More information

Burkitt lymphoma. Sporadic Endemic in Africa associated with EBV Translocations involving MYC gene on chromosome 8

Burkitt lymphoma. Sporadic Endemic in Africa associated with EBV Translocations involving MYC gene on chromosome 8 Heme 8 Burkitt lymphoma Sporadic Endemic in Africa associated with EBV Translocations involving MYC gene on chromosome 8 Most common is t(8;14) Believed to be the fastest growing tumor in humans!!!! Morphology

More information

Lymphoma and Pseudolymphoma

Lymphoma and Pseudolymphoma Lymphoma and Pseudolymphoma Laura B. Pincus, MD Co-Director, Cutaneous Lymphoma Clinic Associate Professor Dermatology and Pathology University of California, San Francisco I HAVE NO RELEVANT RELATIONSHIPS

More information

Pearls and pitfalls in interpretation of lymphoid lesions in needle biopsies

Pearls and pitfalls in interpretation of lymphoid lesions in needle biopsies Pearls and pitfalls in interpretation of lymphoid lesions in needle biopsies Megan S. Lim MD PhD University of Pennsylvania October 8, 2018 Objectives To understand how the trend toward less invasive lymph

More information

WHO UPDATE ON LYMPHOMAS. Dr Priya Mary Jacob Asst Professor, Pathology.

WHO UPDATE ON LYMPHOMAS. Dr Priya Mary Jacob Asst Professor, Pathology. WHO UPDATE ON LYMPHOMAS Dr Priya Mary Jacob Asst Professor, Pathology 3 rd 4 th 4 th revised 2001 2008 2017 The Change The Significance of the Change- Diagnostic, Prognostic The Rationale behind the change.

More information

Immune response. This overview figure summarizes simply how our body responds to foreign molecules that enter to it.

Immune response. This overview figure summarizes simply how our body responds to foreign molecules that enter to it. Immune response This overview figure summarizes simply how our body responds to foreign molecules that enter to it. It s highly recommended to watch Dr Najeeb s lecture that s titled T Helper cells and

More information

Incidence. Bimodal age incidence 15-40, >55 years Childhood form (0-14) more common in developing countries M:F=1.5:1; in all subtypes except NS

Incidence. Bimodal age incidence 15-40, >55 years Childhood form (0-14) more common in developing countries M:F=1.5:1; in all subtypes except NS Hodgkin Lymphoma Hodgkin Lymphoma 30% of all lymphomas Absolute incidence unchanged Arise in lymph node, cervical region Neoplastic tissues usually contain a small number of tumor cells Incidence Bimodal

More information

PET-CT in Peripheral T-cell Lymphoma: To Be or Not To Be

PET-CT in Peripheral T-cell Lymphoma: To Be or Not To Be PET-CT in Peripheral T-cell Lymphoma: To Be or Not To Be Bruce D. Cheson, M.D. Georgetown University Hospital Lombardi Comprehensive Cancer Center Washington, DC, USA So What is the Question(s)? What is

More information

Pathobiology and Molecular Profiling of Peripheral T-Cell Lymphomas

Pathobiology and Molecular Profiling of Peripheral T-Cell Lymphomas PERIPHERAL T-CELL LYMPHOMAS Pathobiology and Molecular Profiling of Peripheral T-Cell Lymphomas Laurence de Leval 1 and Philippe Gaulard 2 1 Pathology Department, University of Liège, Liège, Belgium; 2

More information

Small B-cell (Histologically Low Grade) Lymphoma

Small B-cell (Histologically Low Grade) Lymphoma Frequency of Lymphoid Neoplasms Small B-cell (Histologically Low Grade) Lymphoma Stephen Hamilton-Dutoit Institute of Pathology Aarhus University Hospital B-cell neoplasms 88% Diffuse large B-cell lymphoma

More information

Test Bank for Basic Immunology Functions and Disorders of the Immune System 4th Edition by Abbas

Test Bank for Basic Immunology Functions and Disorders of the Immune System 4th Edition by Abbas Test Bank for Basic Immunology Functions and Disorders of the Immune System 4th Edition by Abbas Chapter 04: Antigen Recognition in the Adaptive Immune System Test Bank MULTIPLE CHOICE 1. Most T lymphocytes

More information

ACTIVATION AND EFFECTOR FUNCTIONS OF CELL-MEDIATED IMMUNITY AND NK CELLS. Choompone Sakonwasun, MD (Hons), FRCPT

ACTIVATION AND EFFECTOR FUNCTIONS OF CELL-MEDIATED IMMUNITY AND NK CELLS. Choompone Sakonwasun, MD (Hons), FRCPT ACTIVATION AND EFFECTOR FUNCTIONS OF CELL-MEDIATED IMMUNITY AND NK CELLS Choompone Sakonwasun, MD (Hons), FRCPT Types of Adaptive Immunity Types of T Cell-mediated Immune Reactions CTLs = cytotoxic T lymphocytes

More information

LYMPHOMAS an overview of some subtypes of NHLs

LYMPHOMAS an overview of some subtypes of NHLs One of the confusing aspects of the lymphoid neoplasms concerns the use of the descriptive terms "leukemia" and "lymphoma." LYMPHOMAS an overview of some subtypes of NHLs Leukemia is used for lymphoid

More information

2018 KSMO Immune Oncology Forum. Immune checkpoint inhibitors in hematologic. malignancies: evidences and perspectives 서울아산병원종양내과 홍정용

2018 KSMO Immune Oncology Forum. Immune checkpoint inhibitors in hematologic. malignancies: evidences and perspectives 서울아산병원종양내과 홍정용 2018 KSMO Immune Oncology Forum Immune checkpoint inhibitors in hematologic malignancies: evidences and perspectives 서울아산병원종양내과 홍정용 2018-07-18 Contents Introduction Immune checkpoint inhibtors in lymphomas

More information

Exploring the Borderlands between Diffuse Large B-cell Lymphoma and Classical Hodgkin s Lymphoma

Exploring the Borderlands between Diffuse Large B-cell Lymphoma and Classical Hodgkin s Lymphoma Exploring the Borderlands between Diffuse Large B-cell Lymphoma and Classical Hodgkin s Lymphoma Elaine S. Jaffe National Cancer Institute Bethesda, MD, USA On the Pathological Changes In Hodgkin s Disease

More information

T CELL LYMPHOMA ANALYSIS

T CELL LYMPHOMA ANALYSIS T CELL LYMPHOMA ANALYSIS Charles Goolsby, Ph.D. Floyd E. Patterson Research Professor of Pathology Northwestern Feinberg School of Medicine c-goolsby@northwestern.edu 1 T CELL LYMPHOMA ANALYSIS Diverse

More information

T-cell Lymphomas Biology and Management

T-cell Lymphomas Biology and Management T-cell Lymphomas Biology and Management March-27-2017 Outline Epidemiology Initial Work-up International Prognostic Index Treatment of Diffuse Large B-cell Lymphoma: -Limited Stage -Advanced Stage Frontline:

More information

Antigen Presentation and T Lymphocyte Activation. Abul K. Abbas UCSF. FOCiS

Antigen Presentation and T Lymphocyte Activation. Abul K. Abbas UCSF. FOCiS 1 Antigen Presentation and T Lymphocyte Activation Abul K. Abbas UCSF FOCiS 2 Lecture outline Dendritic cells and antigen presentation The role of the MHC T cell activation Costimulation, the B7:CD28 family

More information

Interesting case in lymphoma. Kitsada Wudhikarn, MD Division of Hematology, Department of Medicine Faculty of Medicine, Chulalongkorn University

Interesting case in lymphoma. Kitsada Wudhikarn, MD Division of Hematology, Department of Medicine Faculty of Medicine, Chulalongkorn University Interesting case in lymphoma Kitsada Wudhikarn, MD Division of Hematology, Department of Medicine Faculty of Medicine, Chulalongkorn University Eosinophilia Benign reactive etiologies 1. Allergy 2. Infection

More information

Disclosures. Diagnostic Issues. Sinusoidal Infiltrates in the Liver. Ryan M. Gill, M.D., Ph.D. Assistant Professor Department of Pathology.

Disclosures. Diagnostic Issues. Sinusoidal Infiltrates in the Liver. Ryan M. Gill, M.D., Ph.D. Assistant Professor Department of Pathology. Disclosures I have nothing to disclose Sinusoidal Infiltrates in the Liver Ryan M. Gill, M.D., Ph.D. Assistant Professor Department of Pathology Diagnostic Issues Reactive infiltrates are common and may

More information

Adaptive immune responses: T cell-mediated immunity

Adaptive immune responses: T cell-mediated immunity MICR2209 Adaptive immune responses: T cell-mediated immunity Dr Allison Imrie allison.imrie@uwa.edu.au 1 Synopsis: In this lecture we will discuss the T-cell mediated immune response, how it is activated,

More information

Editorial. Peripheral T-cell lymphoma: A developing concept

Editorial. Peripheral T-cell lymphoma: A developing concept Annals of Oncology 9: 797-801, 1998. Editorial Peripheral T-cell lymphoma: A developing concept For a long time T-cell lymphomas (TCLs) were thought to be limited to southern Japan and some parts of China

More information

Principles of Adaptive Immunity

Principles of Adaptive Immunity Principles of Adaptive Immunity Chapter 3 Parham Hans de Haard 17 th of May 2010 Agenda Recognition molecules of adaptive immune system Features adaptive immune system Immunoglobulins and T-cell receptors

More information

Development of Mogamulizumab, a defucosylated anti-ccr4 humanized monoclonal antibody

Development of Mogamulizumab, a defucosylated anti-ccr4 humanized monoclonal antibody New Drugs in Hematology Development of Mogamulizumab, a defucosylated anti-ccr4 humanized monoclonal antibody Michinori Ogura, MD, PhD Department of Hematology Tokai Central Hospital Bologna, Royal Hotel

More information

T Cell Receptor & T Cell Development

T Cell Receptor & T Cell Development T Cell Receptor & T Cell Development Questions for the next 2 lectures: How do you generate a diverse T cell population with functional TCR rearrangements? How do you generate a T cell population that

More information

B cell activation and antibody production. Abul K. Abbas UCSF

B cell activation and antibody production. Abul K. Abbas UCSF 1 B cell activation and antibody production Abul K. Abbas UCSF 2 Lecture outline B cell activation; the role of helper T cells in antibody production Therapeutic targeting of B cells 3 Principles of humoral

More information

Case Report A case of EBV positive diffuse large B-cell lymphoma of the adolescent

Case Report A case of EBV positive diffuse large B-cell lymphoma of the adolescent Int J Clin Exp Med 2014;7(1):307-311 www.ijcem.com /ISSN:1940-5901/IJCEM1311029 Case Report A case of EBV positive diffuse large B-cell lymphoma of the adolescent Qilin Ao 2, Ying Wang 1, Sanpeng Xu 2,

More information

Cutaneous Lymphoid Proliferations: A Comprehensive Textbook of Lymphocytic Infiltrates of the Skin

Cutaneous Lymphoid Proliferations: A Comprehensive Textbook of Lymphocytic Infiltrates of the Skin Cutaneous Lymphoid Proliferations: A Comprehensive Textbook of Lymphocytic Infiltrates of the Skin Magro, Cynthia M., MD ISBN-13: 9780471695981 Table of Contents Chapter One: Introduction to the Classification

More information

Approach to Core Biopsy Specimens

Approach to Core Biopsy Specimens BDIAP 108th Symposium on Haematopathology Joint Meeting of the BDIAP and BLPG at-bristol, Anchor Road, Harbourside, Bristol BS1 5DB 15th - 17th May 2014 Approach to Core Biopsy Specimens Dr Stefan Dojcinov

More information

Overview of Cutaneous Lymphomas: Diagnosis and Staging. Lauren C. Pinter-Brown MD, FACP Health Sciences Professor of Medicine and Dermatology

Overview of Cutaneous Lymphomas: Diagnosis and Staging. Lauren C. Pinter-Brown MD, FACP Health Sciences Professor of Medicine and Dermatology Overview of Cutaneous Lymphomas: Diagnosis and Staging Lauren C. Pinter-Brown MD, FACP Health Sciences Professor of Medicine and Dermatology Definition of Lymphoma A cancer or malignancy that comes from

More information

CHAPTER 9 BIOLOGY OF THE T LYMPHOCYTE

CHAPTER 9 BIOLOGY OF THE T LYMPHOCYTE CHAPTER 9 BIOLOGY OF THE T LYMPHOCYTE Coico, R., Sunshine, G., (2009) Immunology : a short course, 6 th Ed., Wiley-Blackwell 1 CHAPTER 9 : Biology of The T Lymphocytes 1. 2. 3. 4. 5. 6. 7. Introduction

More information

Peripheral T-cell lymphomas (PTCL) Specified and Unspecified. Eric Van Den Neste Cliniques universitaires Saint-Luc Bruxelles

Peripheral T-cell lymphomas (PTCL) Specified and Unspecified. Eric Van Den Neste Cliniques universitaires Saint-Luc Bruxelles Peripheral T-cell lymphomas (PTCL) Specified and Unspecified Eric Van Den Neste Cliniques universitaires Saint-Luc Bruxelles BHS seminar 12, 07 March 2015 Peripheral T-cell lymphomas (PTCL) Specified and

More information

Overview B cell development T cell development

Overview B cell development T cell development Topics Overview B cell development T cell development Lymphocyte development overview (Cont) Receptor diversity is produced by gene rearrangement and is random Includes specificities that will bind to

More information