Malignant lymphoma of follicular center origin is one
|
|
- Blanche Pope
- 6 years ago
- Views:
Transcription
1 Resident Short Reviews Pediatric Follicular Lymphoma Follicular lymphoma, although common in adults, is rare in children. Pediatric follicular lymphoma has a more favorable prognosis than adult follicular lymphoma, even though it is often of higher grade. Children with follicular lymphomas are generally at a lower clinical stage, respond well to less aggressive therapy, and have a better survival than adults. Follicular lymphoma must be distinguished from reactive follicular hyperplasia, which it may mimic. Immunohistochemical and molecular markers serve to facilitate this distinction, as well as careful attention to clinical and morphologic details. It is important to recognize pediatric follicular lymphoma as a unique clinicopathologic entity to properly diagnose and manage these patients. It may represent a subset of follicular lymphoma with a particularly good prognosis. (Arch Pathol Lab Med. 2009;133: ) Malignant lymphoma of follicular center origin is one of the most common types of non-hodgkin lymphoma (NHL). It accounts for approximately 20% to 30% of NHL in adults, occurring predominantly in middle and older age groups. 1 However, it is extremely rare in the pediatric population, the most common pediatric NHLs being lymphoblastic lymphoma, diffuse large B-cell lymphoma, anaplastic large cell lymphoma, and Burkitt lymphoma. Most pediatric follicular lymphomas (FLs) have been documented as single case reports with only a few collected series, including those reported by Finn et al 2 (4 cases), Frizzera and Murphy 3 (8 cases), Winberg et al 4 (12 cases), Pinto et al 5 (20 cases), and Lorsbach et al 6 (23 cases) (Table). CLINICAL FEATURES Pediatric FL comprises less than 6.5% of childhood lymphomas, with a median age range of 7.5 to 11.7 years, a male-female ratio of 4:1, and occasionally occurring in children as young as 3 years (Table). 1,3 9 One study showed a conspicuous male preponderance, with a male-female Accepted for publication June 12, From the Department of Pathology and Laboratory Medicine, Loma Linda University Medical Center, Loma Linda, Calif. The authors have no relevant financial interest in the products or companies described in this article. Reprints: Renuka Agrawal, MD, Department of Pathology and Laboratory Medicine, Loma Linda University Medical Center, Loma Linda, CA ( reagrawal@llu.edu, renuagra@yahoo.com). A Rare Clinicopathologic Entity Renuka Agrawal, MD; Jun Wang, MD ratio of 11:1. 4 It occurs most commonly in the tonsils or lymph nodes of the head and neck region, with occasional extranodal occurrence at a variety of sites, including the gastrointestinal tract, parotid gland, kidney, epididymis, skin, and testis. 3,6,8 10 There are several recent reports of extranodal pediatric FL with a striking propensity for testicular involvement. 1,2,11,12 In many of these cases, testicular involvement was the initial manifestation of clinically occult nodal disease rather than true primary extranodal disease. 1 Ghislanzoni et al 10 recently reported the first case of primary cutaneous follicular center cell lymphoma arising on the nose and the left nasolabial fold of a 16-yearold adolescent boy. HISTOPATHOLOGIC FINDINGS Strict criteria must be used in the diagnosis of FLs in children, to differentiate them from the much more frequently occurring reactive follicular hyperplasia (Figure 1, A and B). Frizzera and Murphy 3 based their diagnosis of FL on the following architectural and cytologic features: (1) total or extensive replacement of nodal structure; (2) even distribution of nodules throughout the node or lesion, as opposed to the predominantly cortical distribution of follicles in reactive hyperplasia; (3) crowding of nodules with little interposed lymphoid tissue; (4) overall uniformity in size and shape of nodules as compared with that seen in follicles of reactive hyperplasia; (5) paucity of reactive lymphoid cells (immunoblasts and plasma cells) in the interfollicular areas, strikingly demonstrable by immunoperoxidase staining; and (6) the cytologic composition of the nodules. Winberg et al 4 found that the most helpful features were effacement of nodal architecture, the presence of cytologically atypical cells in the interfollicular areas identical to those in the neoplastic follicles, and the monomorphous appearance of these cells in the follicles. The number of histiocytes containing tingible bodies was felt not to be a reliable feature for distinguishing reactive from neoplastic follicular proliferations in both adults and children. An increase in the number of follicles per unit surface area may also serve as a helpful parameter for distinguishing reactive from malignant follicular proliferation. 13 It must be remembered that neoplastic follicles can sometimes coexist with benign follicles within the same lymph node (Figure 2). Hence, care should be taken not to overlook FL when some other areas show only reactive changes. As in adults, pediatric FLs contain both small cleaved cells (centrocytes) and large cells (centroblasts) in varying 142 Arch Pathol Lab Med Vol 133, January 2009 Pediatric Follicular Lymphoma Agrawal & Wang
2 Figure 1. A, Benign reactive follicles show polarization of the mantle zone and a polymorphous lymphoid population in the germinal center with conspicuous tingible body macrophages (hematoxylin-eosin, original magnification 200). B, In contrast to reactive follicles, neoplastic follicles show a somewhat effaced architecture and appear monomorphous. Cytologically atypical cells identical to those in the neoplastic follicles are seen in the interfollicular areas as well (hematoxylin-eosin, original magnification 100). Figure 2. Reactive follicles (on the left) may coexist with neoplastic follicles (on the right) within the same lymph node (hematoxylin-eosin, original magnification 50). Figure 3. Cytologically, both small centrocytes and larger centroblasts are seen in varying proportions within the neoplastic follicles (hematoxylineosin, original magnification 400). proportions (Figure 3). Although in adults they are often grade 1 and generally considered incurable, in children they are more often grade 2 or 3, and most are apparently curable. 7 In both children and adults, the tumor may progress from a follicular to a diffuse architectural pattern and may show transformation from small lymphocytic cells to the more aggressive larger or histiocytic cells (Table). 4 Bone marrow involvement is relatively common in FL, present in about 40% of patients overall. 14 In a series of 450 NHL cases with bone marrow involvement, which included both pediatric and adult patients, Arber and George 15 found FL to be the most common NHL to involve the bone marrow (37%), with grade 1 FL predominating. A pure paratrabecular pattern or mixed patterns with components of both paratrabecular involvement and follicular structures were the most typical of FL and highly correlated with FL as opposed to other types of NHL, although not entirely specific. MOLECULAR PATHOGENESIS AND IMMUNOPHENOTYPIC FEATURES The pathogenesis and biologic behavior of FL in children is less well understood than in adults. 6 More than 85% of FLs in adults demonstrate a characteristic translocation, t(14;18)(q32;q21), involving the bcl-2 gene, 16 whereas most pediatric FLs are negative for bcl-2 protein and lack bcl-2/immunoglobulin heavy chain (IgH) translocations. 7 This has led to the belief that in most instances the pathogenesis of FL in children might be different from its adult counterpart and in the pediatric group, detection of FL by identifying t(14;18) may not be helpful, due to the low positive rate (Table). However, up to about 30% of pediatric FLs may express bcl-2 protein and a smaller proportion may have bcl-2 translocations. These cases with bcl-2 abnormalities are usually seen in older children ( 12 years) with disseminated disease and are associated with a more adverse outcome. 6,9 Pediatric FLs lacking bcl-2 ex- Arch Pathol Lab Med Vol 133, January 2009 Pediatric Follicular Lymphoma Agrawal & Wang 143
3 Series Comparison of Major Published Series on Pediatric Lymphoma* No. of Cases Age Range, y Male/Female Site Predominant Histology Finn et al, /0 Testes F (1 case F D) Frizzera et al, /2 LN F/F D Winberg et al, /1 LN F/F D Pinto et al, /5 LN/tonsil F/F D Lorsbach et al, /7 LN/tonsil/extranodal F/F D * IHC indicates immunohistochemistry; IgH, immunoglobulin heavy chain; F, follicular; D, diffuse; LC, large cell; -ve, negative; LN, lymph node; ND, not done; and SCC, small cleaved cell. bcl-2 gene rearrangement and IgH were done in 3 of 4 cases. bcl-2 immunohistochemistry and gene rearrangement were done in 16 of 23 cases. pression are typically associated with limited-stage disease and excellent disease-free survival when treated with multiagent chemotherapy. 6 Although bcl-2 expression is not diagnostic of any particular type of lymphoma, immunohistochemistry to detect bcl-2 is still often helpful in those cases in which the distinction between FL and florid follicular hyperplasia is problematic, as reactive germinal centers are negative for bcl-2. 17,18 Given the unclear role and low frequency of bcl-2 expression in pediatric FLs, methods other than conventional cytogenetics and immunohistochemistry are needed to establish monoclonality and to determine IgH receptor gene rearrangement. These could include Southern blot analysis and polymerase chain reaction. There are limited data in the literature on techniques used specifically for pediatric FL. For confirmation of clonality in their series of primary testicular FL in childhood, Finn et al 2 used flow cytometric findings, immunohistochemical demonstration of light-chain restriction, and/or detection of clonal IgH gene rearrangement by polymerase chain reaction. Gong et al 19 compared the accuracy in detecting FL and diffuse large B-cell lymphoma of follicular center cell origin by interphase fluorescence in situ hybridization versus flow cytometry on fine-needle aspirations of 84 patients who were possibly not limited to the pediatric population. Although flow cytometry is a useful ancillary study and can support a diagnosis of FL by detecting the characteristic monoclonal B-cell proliferation with coexpression of CD19 and CD10, at least 2 million cells are required for a diagnostic panel. In their study, interphase fluorescence in situ hybridization for the t(14;18)(q32;q21) translocation provided high overall accuracy in detecting FLs in fineneedle aspirations and Gong et al concluded that it could be used for diagnosing or monitoring FL in fine-needle aspirations when cellularity is limited or when flow cytometry results are noncontributory. 19 A new method, combining seminested polymerase chain reaction with heteroduplex analysis, was used by Oehadian et al 20 to detect FL cells in peripheral blood. This method, based on the detection of IgH rearrangements in DNA, detected the presence of monoclonal B cells in FL patients with a high frequency in their study. As in adults, several other findings can be used as valuable tools in the assessment of pediatric FLs. bcl-6 gene rearrangement appears to play a role in the pathogenesis of FL, and like with diffuse large B-cell lymphoma, it may correlate with a favorable prognosis. 21,22 Follicular lymphomas express bcl-6 and often CD10 as well, both of which are immunophenotypic features consistent with a follicular center cell origin. 23,24 In their series of 23 pediatric FL cases, Lorsbach et al 6 found that all cases expressed CD20 and bcl-6 (Table), and 80% of these were positive for CD10. Immunostaining for CD21 may show follicular dendritic cells within the nodules of many tumors, including extranodal cases, further supporting a follicular center cell origin. A minority of cases may be CD43 positive. 7 The Ki-67 staining pattern effectively allows the distinction of benign versus neoplastic follicular lesions. 25 Most neoplastic follicles are easily recognized by their low proliferative rate. Ki-67 cells are randomly distributed in the follicles. They do not show any tendency to polarize and show no sharp demarcation along the edge. In contrast to reactive follicles, which typically vary from one to another according to the plane of sectioning through their polarized structures, malignant follicles tend to be monotonous and uniform across the slide. 25 Thus, Ki-67 is a helpful tool to differentiate FL from follicular hyperplasia, especially in lower grade FL. However, used alone, it is not enough to distinguish between these 2 entities. Mutations or deletions of the p53 tumor suppressor gene have been implicated in the progression of adult FL. Expression of p53 protein is significantly increased in follicular large cell lymphoma (grade 3) compared with follicular small cleaved cell lymphoma (grade 1) in adults. 26 Immunohistochemical detection of p53 protein correlates with the presence of p53 mutations in FL. 27,28 Absence of p53 staining, however, does not exclude the possibility of nonproductive p53 mutations or deletions. 2 These observations have been largely based on outcome noted in the adult population and the role of p53 in the progression of pediatric FL remains unclear. DIFFERENTIAL DIAGNOSIS Given the difficulties in differentiating FL from reactive follicular hyperplasia on morphologic grounds, care must be taken to exclude the many other common causes of reactive lymphadenopathy in childhood. A rigorous clinical and laboratory evaluation and an expert opinion from a hematopathologist are ideal. A careful physical examination and detailed clinical history are important in facilitating the recognition of reactive hyperplasia due to recent vaccinations or inflammatory processes in adjacent areas, systemic infections, autoimmune processes, or hypersensitivity reactions to drugs or other agents. 3,29 Pediatric marginal zone lymphoma and pediatric FL may have similar clinical features (male predominance, localized disease, good prognosis) and morphologic features (progressive transformation of germinal center like areas, follicle lysis-like areas). Additionally, the presence of follicular colonization and nodular growth pattern in marginal zone lymphoma may simulate FL. Immunophenotypic studies are often useful in this differential diagnosis. 144 Arch Pathol Lab Med Vol 133, January 2009 Pediatric Follicular Lymphoma Agrawal & Wang
4 Extended Predominant Cytology Clinical Stage bcl-2 (IHC) bcl-2 (Gene Rearrangement) bcl-6 IgH All LC All are stage I -ve in all -ve in 3/3 3 /4 2 /3 Mixed/LC Mostly I, II/IV also ND ND ND ND SCC/LC Mostly I, II IV also ND ND ND ND LC/SCC/mixed Mostly I, II/III also ND ND ND ND Mixed LC and SCC Mostly I, II IV also 5 /16 2 /16 All ND Marginal zone lymphomas usually lack the germinal center-associated markers bcl-6 and CD10 seen in FLs. Also, although most marginal zone lymphomas coexpress CD43, its aberrant coexpression is not a common feature of FL. 30 When testicular involvement is the initial presentation, distinction from chronic orchitis becomes important. The histologic features of classic FL and demonstration of B- cell clonality in at least some cases help confirm that these testicular follicular lesions are true malignant lymphomas, even if the patients seem to do very well. 7 PROGNOSIS AND TREATMENT Most cases of childhood FL present as low-stage disease (particularly in patients younger than 10 years), and therapy usually results in complete remission, with progression to high-grade lymphoma being unusual. This is in contrast to adults with FL, who commonly present with high-stage disease and run an indolent but progressive clinical course that is refractory to current chemotherapeutic approaches, including bone marrow transplantation. 6 Advanced stage disease with extranodal involvement at presentation is uncommon in children, but when present appears to correlate with a poor prognosis. 3 5,8,9 Winberg et al 4 found involvement of bone, lung, pleura, gonads, meninges, or disseminated skin involvement by FL to correlate with shorter survival, although bone marrow, liver, and localized skin involvement did not. Failure to achieve a complete response to initial therapy has also been associated with a poorer outcome. 4 Combination chemotherapy is typically used in the treatment of FL with predominantly good results. Some series report an adverse outcome in as few as 15% of patients, with the remainder surviving disease free and without recurrence. 6,9 Atra et al 9 found that the long-term prognosis in children was generally excellent, and although most of the children in their study received combination chemotherapy, some had no evidence of disease following surgical excision alone, prompting the authors to suggest that conservative management may be justified for children with localized disease. Given the acute toxicities and late effects associated with chemotherapy, the potential of surgical resection alone as adequate therapy in selected patients with stage I (or possibly stage II) disease is indeed intriguing. However, studies with a larger group of patients in controlled clinical trials will be necessary to confirm the most optimal therapeutic approach, and there currently remains no single established therapeutic paradigm for this rare disease. We gratefully acknowledge Craig Zuppan, MD, for critical review of the manuscript. References 1. Lu D, Medeiros LJ, Eskenazi AE, Abruzzo LV. Primary follicular large cell lymphoma of the testis in a child. Arch Pathol Lab Med. 2001;125: Finn LS, Viswanatha DS, Belasco JB, et al. Primary follicular lymphoma of the testis in childhood. Cancer. 1999;85: Frizzera G, Murphy SB. Follicular (nodular) lymphoma in childhood: a rare clinical-pathological entity: report of eight cases from four cancer centers. Cancer. 1979;44: Winberg CD, Nathwani BN, Bearman RM, Rappaport H. Follicular (nodular) lymphoma during the first two decades of life: a clinicopathologic study of 12 patients. Cancer. 1981;48: Pinto A, Hutchison RE, Grant LH, Trevenen CL, Berard CW. Follicular lymphomas in pediatric patients. Mod Pathol. 1990;3: Lorsbach RB, Shay-Seymore D, Moore J, et al. Clinicopathologic analysis of follicular lymphoma occurring in children. Blood. 2002;99: Swerdlow SH. Pediatric follicular lymphomas, marginal zone lymphomas, and marginal zone hyperplasia. Am J Clin Pathol. 2004;122(suppl):S98 S Ribeiro RC, Pui CH, Murphy SB, et al. Childhood malignant non-hodgkin lymphomas of uncommon histology. Leukemia. 1992;6: Atra A, Meller ST, Stevens RS, et al. Conservative management of follicular non-hodgkin s lymphoma in childhood. Br J Haematol. 1998;103: Ghislanzoni M, Gambini D, Perrone T, Alessi E, Berti E. Primary cutaneous follicular center cell lymphoma of the nose with maxillary sinus involvement in a pediatric patient. J Am Acad Dermatol. 2005;52:S73 S Moertel CL, Watterson J, McCormick SR, Simonton SC. Follicular large cell lymphoma of the testis in a child. Cancer. 1995;75: Kay R. Prepubertal Testicular Tumor Registry. J Urol. 1993;150: Nathwani BN, Winberg CD, Diamond LW, Bearman RM, Kim H. Morphologic criteria for the differentiation of follicular lymphoma from florid reactive follicular hyperplasia: a study of 80 cases. Cancer. 1981;48: Nathwani BN, Harris NL, Weisenburger D, et al. Follicular lymphoma. In: Jaffe ES, Harris NL, Stein H, Vardiman JW, eds. Pathology and Genetics oftumours of Haematopoietic and Lymphoid Tissues. Lyon, France: IARC Press; 2001: World Health Organization Classification of Tumours; vol Arber DA, George TI. Bone marrow biopsy involvement by non-hodgkin s lymphoma: frequency of lymphoma types, patterns, blood involvement, and discordance with other sites in 450 specimens. Am J Surg Pathol. 2005;29: Yunis JJ, Oken MM, Kaplan ME, Ensrud KM, Howe RR, Theologides A. Distinctive chromosomal abnormalities in histologic subtypes of non-hodgkin s lymphoma. N Engl J Med. 1982;307: Utz GL, Swerdlow SH. Distinction of follicular hyperplasia from follicular lymphoma in B5-fixed tissues: comparison of MT2 and bcl-2 antibodies. Hum Pathol. 1993;24: Gelb AB, Rouse RV, Dorfman RF, Warnke RA. Detection of immunophenotypic abnormalities in paraffin-embedded B-lineage non-hodgkin s lymphomas. Am J Clin Pathol. 1994;102: Gong Y, Caraway N, Gu J, et al. Evaluation of interphase fluorescence in situ hybridization for the t(14;18)(q32;q21) translocation in the diagnosis of follicular lymphoma on fine-needle aspirates: a comparison with flow cytometry immunophenotyping. Cancer. 2003;99: Oehadian A, Koide N, Mu MM, Hassan F, Yoshida T, Yokochi T. Seminested polymerase chain reaction and heteroduplex analysis detects the monoclonality of IgH rearrangement in follicular lymphoma patients with high sensitivity. Haematologica. 2005;90: Otsuki T, Yano T, Clark HM, et al. Analysis of LAZ3 (BCL-6) status in B- cell non-hodgkin s lymphomas: results of rearrangement and gene expression studies and a mutational analysis of coding region sequences. Blood. 1995;85: Offit K, Lo Coco F, Louie DC, et al. Rearrangement of the bcl-6 gene as a prognostic marker in diffuse large-cell lymphoma. N Engl J Med. 1994;331: Onizuka T, Moriyama M, Yamochi T, et al. BCL-6 gene product, a 92- to 98-kD nuclear phosphoprotein, is highly expressed in germinal center B cells and their neoplastic counterparts. Blood. 1995;86: Dogan A, Bagdi E, Munson P, Isaacson PG. CD10 and BCL-6 expression in paraffin sections of normal lymphoid tissue and B-cell lymphomas. Am J Surg Pathol. 2000;24: Bryant RJ, Banks PM, O Malley DP. Ki67 staining pattern as a diagnostic Arch Pathol Lab Med Vol 133, January 2009 Pediatric Follicular Lymphoma Agrawal & Wang 145
5 tool in the evaluation of lymphoproliferative disorders. Histopathology. 2006;48: Nguyen PL, Zukerberg LR, Benedict WF, Harris NL. Immunohistochemical detection of p53, bcl-2 and retinoblastoma proteins in follicular lymphoma. Am J Clin Pathol. 1996;105: Sander CA, Yano T, Clark HM, et al. p53 mutation is associated with progression in follicular lymphomas. Blood. 1993;82: Lo Coco F, Gaidano G, Louie DC, Offit K, Chaganti RS, Dalla-Favera R. p53 mutations are associated with histologic transformation of follicular lymphoma. Blood. 1993;82: Zuelzer WW, Kaplan J. The child with lymphadenopathy. Semin Hematol. 1975;12: Taddesse-Heath L, Pittaluga S, Sorbara L, Bussey M, Raffeld M, Jaffe ES. Marginal zone B-cell lymphoma in children and young adults. Am J Surg Pathol. 2003;27: Prepare Now for the CAP 09 Abstract Program Plan now to submit abstracts and case studies for the CAP 09 meeting, which will be held October 11th through the 14th in Washington, DC. Submissions for the CAP 09 Abstract Program will be accepted from: Monday, February 2, 2009, through Friday, March 27, Accepted submissions will appear in the October 2009 issue of the Archives of Pathology & Laboratory Medicine. Visit the CAP 09 Web site at for additional abstract program information. 146 Arch Pathol Lab Med Vol 133, January 2009 Pediatric Follicular Lymphoma Agrawal & Wang
CD5 Positive Follicular Lymphomas- A Diagnostic Dilemma in a Resource Restricted Laboratory Setting
Original Article DOI: 10.21276/APALM.1364 CD5 Positive Follicular Lymphomas- A Diagnostic Dilemma in a Resource Restricted Laboratory Setting Sakthi Sankari S 1 *, Arjunan A 2, Bhuvaneswari M.G. 2, Sindhuja
More informationCase 3. Ann T. Moriarty,MD
Case 3 Ann T. Moriarty,MD Case 3 59 year old male with asymptomatic cervical lymphadenopathy. These images are from a fine needle biopsy of a left cervical lymph node. Image 1 Papanicolaou Stained smear,100x.
More informationMantle Cell Lymphoma
HEMATOPATHOLOGY Original Article Mantle Cell Lymphoma Morphologic Findings in Bone Marrow Involvement JAY WASMAN, MD, 1 NANCY S. ROSENTHAL, MD,' AND DIANE C. FARHI, MD 2 Although mantle cell lymphoma (MCL),
More informationImmunopathology 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 informationNon-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 informationFOLLICULARITY in LYMPHOMA
FOLLICULARITY in LYMPHOMA Reactive Follicular Hyperplasia Follicular Hyperplasia irregular follicles Follicular Hyperplasia dark and light zones Light Zone Dark Zone Follicular hyperplasia MIB1 Follicular
More informationMimics of Lymphoma in Routine Biopsies. Mixed follicular and paracortical hyperplasia. Types of Lymphoid Hyperplasia
Mimics of Lymphoma in Routine Biopsies Patrick Treseler, MD, PhD Professor of Pathology University of California San Francisco Types of Lymphoid Hyperplasia Follicular hyperplasia (B-cells) Paracortical
More informationMimics of Lymphoma in Routine Biopsies. I have nothing to disclose regarding the information to be reported in this talk.
Mimics of Lymphoma in Routine Biopsies Patrick Treseler, MD, PhD Professor of Pathology University of California San Francisco I have nothing to disclose regarding the information to be reported in this
More informationDifferential 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 information7 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 informationCase Report Follicular lymphoma mimicking marginal zone lymphoma in lymph node: a case report
Int J Clin Exp Pathol 2014;7(10):7076-7081 www.ijcep.com /ISSN:1936-2625/IJCEP0001940 Case Report Follicular lymphoma mimicking marginal zone lymphoma in lymph node: a case report Ikuo Matsuda 1, Yoshifumi
More informationPhenoPath. Diagnoses you can count on B CELL NON-HODGKIN LYMPHOMA
PhenoPath Diagnoses you can count on B CELL NON-HODGKIN LYMPHOMA C urrent diagnosis of B cell non-hodgkin lymphoma (B-NHL) is based on the 2008 WHO Classification of Tumours of Haematopoietic and Lymphoid
More informationComposite mantle cell and follicular lymphoma. A case report
Human Pathology (2009) 40, 259 263 www.elsevier.com/locate/humpath Case study Composite mantle cell and follicular lymphoma. A case report Raquel B. Ilgenfritz MD a,, Agnès Le Tourneau MD a, Michel Arborio
More informationFrom Morphology to Molecular Pathology: A Practical Approach for Cytopathologists Part 1-Cytomorphology. Songlin Zhang, MD, PhD LSUHSC-Shreveport
From Morphology to Molecular Pathology: A Practical Approach for Cytopathologists Part 1-Cytomorphology Songlin Zhang, MD, PhD LSUHSC-Shreveport I have no Conflict of Interest. FNA on Lymphoproliferative
More information11/8/2018 DISCLOSURES. I have NO Conflicts of Interest to Disclose. UTILTY OF DETECTING PATTERNS
Bharat N. Nathwani, M.D. City of Hope Medical Center Professor, Director of Pathology Consultation Services, 1500 East Duarte Road, Duarte, California, 91010 DISCLOSURES -------------------------------------------------------
More informationA Practical Guide To Diagnose B-Cell Lymphomas on FNAs. Nancy P. Caraway, M.D.
A Practical Guide To Diagnose B-Cell Lymphomas on FNAs Nancy P. Caraway, M.D. Major Factors Impacting Dx Lymphomas on Small Bxs Classification systems Immunophenotyping by multiprobe flow cytometry and
More informationMolecular 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 informationClassification of Hematologic Malignancies. Patricia Aoun MD MPH
Classification of Hematologic Malignancies Patricia Aoun MD MPH Objectives Know the basic principles of the current classification system for hematopoietic and lymphoid malignancies Understand the differences
More informationContents. 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 informationLYMPHOMAS 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 informationDiagnosis of lymphoid neoplasms has been
Iranian Journal of Pathology (2007)2 (1), 1-61 Review Article Mehdi Nassiri Dep. of Pathology, University of Miami Miller School of Medicine, Miami, USA Abstract Correct diagnosis and classification of
More informationPathology 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 informationCase 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 informationCase Report Parotid gland follicular lymphoma lacking both cytoplasmic and surface light chains: a rare case
Int J Clin Exp Pathol 2014;7(10):7100-7104 www.ijcep.com /ISSN:1936-2625/IJCEP0001717 Case Report Parotid gland follicular lymphoma lacking both cytoplasmic and surface light chains: a rare case Jenny
More informationSmall 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 informationECP 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 informationLarge 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 informationPearls 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 informationLymphoma: 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 informationHematopathology Service Memorial Sloan Kettering Cancer Center, New York
SH2017-0334 t(14;18) Negative Follicular Lymphoma with 1p36 abnormality associated with In Situ Follicular Neoplasia with t(14;18) translocation Pallavi Khattar MD, Jennifer Maerki MD, Alexander Chan MD,
More informationABERRANT EXPRESSION OF CD19 AND CD43
ABERRANT EXPRESSION OF CD19 AND CD43 IN A PATIENT WITH THERAPY-RELATED ACUTE MYELOID LEUKEMIA AND A HISTORY OF MANTLE CELL LYMPHOMA Yen-Chuan Hsieh, 1 Chien-Liang Lin, 2 Chao-Jung Tsao, 2 Pin-Pen Hsieh,
More informationDefined 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 informationPrimary 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 informationConjunctival CD5+ MALT lymphoma and review of literatures
ISPUB.COM The Internet Journal of Pathology Volume 8 Number 2 Conjunctival CD5+ MALT lymphoma and review of literatures M Fard Citation M Fard. Conjunctival CD5+ MALT lymphoma and review of literatures.
More informationBurkitt 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 informationDoes the proliferation fraction help identify mature B cell lymphomas with double- and triple-hit translocations?
Histopathology 2012, 61, 1214 1218. DOI: 10.1111/j.1365-2559.2012.04351.x SHORT REPORT Does the proliferation fraction help identify mature B cell lymphomas with double- and triple-hit translocations?
More informationFollicular Lymphoma: the WHO
Follicular Lymphoma: the WHO and the WHERE? Yuri Fedoriw, MD Associate Professor of Pathology and Laboratory Medicine Director of Hematopathology University of North Carolina Chapel Hill, NC Disclosure
More informationDuring 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 information2012 by American Society of Hematology
2012 by American Society of Hematology Common Types of HIV-Associated Lymphomas DLBCL includes primary CNS lymphoma (PCNSL) Burkitt Lymphoma HIV-positive patients have a 60-200 fold increased incidence
More informationLymphoma 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 informationCase Report Synchronous Pulmonary Squamous Cell Carcinoma and Mantle Cell Lymphoma of the Lymph Node
Case Reports in Genetics Volume 2011, Article ID 945181, 5 pages doi:10.1155/2011/945181 Case Report Synchronous Pulmonary Squamous Cell Carcinoma and Mantle Cell Lymphoma of the Lymph Node Yu Sun, 1 Yun-Fei
More informationLymphoid Neoplasms Associated With IgM Paraprotein A Study of 382 Patients
Hematopathology / LYMPHOMAS WITH IGM PARAPROTEIN Lymphoid Neoplasms Associated With IgM Paraprotein A Study of 382 Patients Pei Lin, MD, 1 Suyang Hao, MD, 1* Beverly C. Handy, MD, 2 Carlos E. Bueso-Ramos,
More informationLow-grade B-cell lymphoma
Low-grade B-cell lymphoma Patho-Basic 11. September 2018 Stephan Dirnhofer Pathology Outline Definition LPL, MBL/CLL/SLL, MCL FL Subtypes & variants Diagnosis including Grading Transformation Summary Be
More informationHEMATOPATHOLOGY (SHANDS HOSPITAL AT THE UNIVERSITY OF FLORIDA): Rotation Director: Ying Li, M.D., Ph.D., Assistant Professor
HEMATOPATHOLOGY (SHANDS HOSPITAL AT THE UNIVERSITY OF FLORIDA): Rotation Director: Ying Li, M.D., Ph.D., Assistant Professor I. Description of the rotation: During this rotation, the resident will gain
More informationMethods 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 informationLymphocytoma Cutis. Cynthia M. Magro MD. Director of Dermatopathology Weill Medical College of Cornell University New York, New York
Lymphocytoma Cutis Cynthia M. Magro MD Professor of Pathology Director of Dermatopathology Weill Medical College of Cornell University New York, New York Lymphocytoma Cutis Falls under other designations
More informationMany of the hematolymphoid disorders are derived
REVIEW ARTICLE Practical Immunohistochemistry in Hematopathology: A Review of Useful Antibodies for Diagnosis Ji Lu, MD and Karen L. Chang, MD Abstract: This review article offers some useful panels of
More information88-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 informationPresentation material is for education purposes only. All rights reserved URMC Radiology Page 1 of 98
Presentation material is for education purposes only. All rights reserved. 2011 URMC Radiology Page 1 of 98 Radiology / Pathology Conference February 2011 Brooke Koltz, Cytopathology Resident Presentation
More informationCover Page. The handle holds various files of this Leiden University dissertation.
Cover Page The handle http://hdl.handle.net/1887/39089 holds various files of this Leiden University dissertation. Author: Cetinozman, F. Title: PD-1 Expression in primary cutaneous lymphoma Issue Date:
More information9/28/2017. Follicular Lymphoma and Nodal Marginal Zone Lymphoma. Follicular Lymphoma Definition. Low-Grade B-Cell Lymphomas in WHO Classification
and L. Jeffrey Medeiros, MD DISCLOSURES I do not have anything to disclose Low-Grade B-Cell Lymphomas in WHO Classification Lymphoma Type Frequency Follicular lymphoma 22.1 % Extranodal MALT-lymphoma 7.6
More informationLymphoma/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 informationPathology #07. Hussein Al-Sa di. Dr. Sohaib Al-Khatib. Mature B-Cell Neoplasm. 0 P a g e
Pathology #07 Mature B-Cell Neoplasm Hussein Al-Sa di Dr. Sohaib Al-Khatib 0 P a g e Thursday 18/2/2016 Our lecture today (with the next 2 lectures) will be about lymphoid tumors This is a little bit long
More informationMorphometric Characterization of Small Cell Lymphocytic Lymphoma
ARS Medica Tomitana - 2014; 4(79): 179-183 10.1515/arsm-2015-0002 Chisoi Anca 1, Aşchie Mariana 2, Poinăreanu I. 2 Morphometric Characterization of Small Cell Lymphocytic Lymphoma 1 Spitalul Clinic Judetean
More informationPlasma cell myeloma (multiple myeloma)
Plasma cell myeloma (multiple myeloma) Common lymphoid neoplasm, present at old age (70 years average) Remember: plasma cells are terminally differentiated B-lymphocytes that produces antibodies. B-cells
More informationDETERMINATION OF A LYMPHOID PROCESS
Chapter 2 Applications of Touch Preparation Cytology to Intraoperative Consultations: Lymph Nodes and Extranodal Tissues for Evaluation of Hematolymphoid Disorders INTRODUCTION As discussed in Chap. 1,
More informationWorkshop Case # 8 (H 4205/07)
Workshop Case # 8 (H 4205/07) 53 y old male patient had a history of gastrectomy 15 years earlier for gastric carcinoma.on routine sonographic and CT control an enlarged lymph node was detected in the
More informationThe 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 informationLymphoma classification: a still ongoing journey
Lymphoma classification: a still ongoing journey Stefano A. Pileri Professor of Pathology, Bologna University Medical School Director of Haematopathology, St. Orsola Policlinic (at present) Director of
More informationProtocol for the Examination of Specimens From Patients With Hodgkin Lymphoma*
Protocol for the Examination of Specimens From Patients With Hodgkin Lymphoma* Version: Hodgkin 3.1.0.1 Protocol Posting Date: October 2013 This protocol is NOT required for accreditation purposes *This
More informationA Clinicopathologic Evaluation of Follicular Lymphoma Grade 3A Versus Grade 3B Reveals No Survival Differences
Clinicopathologic Evaluation of Follicular Lymphoma Grade 3 Versus Grade 3 Reveals o Survival Differences Eric D. Hsi, MD; Imran Mirza, MD; Gerard Lozanski, MD; John Hill, MD; rad Pohlman, MD; Matthew
More informationAggressive B-cell Lymphomas Updated WHO classification Elias Campo
Aggressive B-cell Lymphomas Updated WHO classification Elias Campo Hospital Clinic, University of Barcelona Diffuse Large B-cell Lymphoma A Heterogeneous Category Subtypes with differing: Histology and
More informationGray Zones and Double Hits Distinguishing True Burkitt Lymphoma from Other High-Grade B-NHLs Burkitt Lymphoma Burkitt-Like Lymphoma DLBCL Patrick Tres
Gray Zones and Double Hits Distinguishing True Burkitt Lymphoma from Other High-Grade B-NHLs Burkitt Lymphoma Burkitt-Like Lymphoma DLBCL Patrick Treseler, MD, PhD University of California San Francisco
More informationSmad1 Expression in Follicular Lymphoma
Journal of Pathology and Translational Medicine 2015; 49: 243-248 ORIGINAL ARTICLE Smad1 Expression in Follicular Lymphoma Jai Hyang Go Department of Pathology, Dankook University College of Medicine,
More informationImmunohistochemical differentiation between follicular lymphoma and nodal marginal zone lymphoma combined performance of multiple markers
Published Ahead of Print on June 11, 2015, as doi:10.3324/haematol.2014.120956. Copyright 2015 Ferrata Storti Foundation. Immunohistochemical differentiation between follicular lymphoma and nodal marginal
More informationCommentary on the WHO Classification of Tumors of Lymphoid Tissues (2008): Indolent B Cell Lymphomas
Commentary on the WHO Classification of Tumors of Lymphoid Tissues (2008): Indolent B Cell Lymphomas The Harvard community has made this article openly available. Please share how this access benefits
More information3/24/2017 DENDRITIC CELL NEOPLASMS: HISTOLOGY, IMMUNOHISTOCHEMISTRY, AND MOLECULAR GENETICS. Disclosure of Relevant Financial Relationships
DENDRITIC CELL NEOPLASMS: HISTOLOGY, IMMUNOHISTOCHEMISTRY, AND MOLECULAR GENETICS Jason L. Hornick, M.D., Ph.D. Director of Surgical Pathology and Immunohistochemistry Brigham and Women s Hospital Professor
More informationA Unique Case of Nasal NK/T Cell Lymphoma with Frequent Remission and Relapse Showing Different Histological Features During 12 Years of Follow Up
J Clin Exp Hematopathol Vol. 50, No. 1, May 2010 Case Study A Unique Case of Nasal NK/T Cell Lymphoma with Frequent Remission and Relapse Showing Different Histological Features During 12 Years of Follow
More informationMethotrexate-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 informationNodular lymphocyte predominant Hodgkin lymphoma. Lymphoma Tumor Board. January 5, 2018
Nodular lymphocyte predominant Hodgkin lymphoma Lymphoma Tumor Board January 5, 2018 Etiology Subtypes of Classical Hodgkin Lymphoma (chl)* Nodular sclerosing HL Most common subtype Composed of large tumor
More informationFlow cytometric evaluation of endoscopic biopsy specimens from patients with gastrointestinal tract B-cell lymphoma: a preliminary report
Jichi Medical University Journal Flow cytometric evaluation of endoscopic biopsy specimens from patients with gastrointestinal tract B-cell lymphoma: a preliminary report Satoko Oka,, Kazuo Muroi,, Kazuya
More informationUnknown Case 6. Ann T. Moriarty, MD
Unknown Case 6 Ann T. Moriarty, MD Unknown Case 6 61 year old male with an enlarged cervical lymph node. He has a history of lung carcinoma, renal cell carcinoma and lymphoma. Case 6 Image 1: Fine needle
More informationNON HODGKINS LYMPHOMA: INDOLENT Updated June 2015 by Dr. Manna (PGY-5 Medical Oncology Resident, University of Calgary)
NON HODGKINS LYMPHOMA: INDOLENT Updated June 2015 by Dr. Manna (PGY-5 Medical Oncology Resident, University of Calgary) Reviewed by Dr. Michelle Geddes (Staff Hematologist, University of Calgary) and Dr.
More informationCase Report Transformation of a Cutaneous Follicle Center Lymphoma to a Diffuse Large B-Cell Lymphoma An Unusual Presentation
Case Reports in Medicine Volume 21, Article ID 296523, 5 pages doi:1.1155/21/296523 Case Report Transformation of a Cutaneous Follicle Center Lymphoma to a Diffuse Large B-Cell Lymphoma An Unusual Presentation
More informationBone Marrow Involvement in Malignant Lymphomas (Non-Hodgkin ' s) Eman Sadiq Jalal MSc
MSc Abstract: Background: Bone marrow biopsies are taken routinely in the initial investigation of patients with non-hodgkin, s lymphomas to estimate the progression of disease at time of presentation
More informationUpdate on Thyroid FNA The Bethesda System. Shikha Bose M.D. Associate Professor Cedars Sinai Medical Center
Update on Thyroid FNA The Bethesda System Shikha Bose M.D. Associate Professor Cedars Sinai Medical Center Thyroid Nodules Frequent occurrence Palpable: 4-7% of adults Ultrasound: 10-31% Majority benign
More informationGENETIC MARKERS IN LYMPHOMA a practical overview. P. Heimann Dpt of Medical Genetics Erasme Hospital - Bordet Institute
GENETIC MARKERS IN LYMPHOMA a practical overview P. Heimann Dpt of Medical Genetics Erasme Hospital - Bordet Institute B and T cell monoclonalities Rearrangement of immunoglobin and TCR genes may help
More informationMorphological Typing of Lymphomas with Immunohistochemistry
Indian Medical Gazette APRIL 2015 127 Original Article Morphological Typing of Lymphomas with Immunohistochemistry Aparna Bhardwaj, Assosciate Professor, Sanjeev Kishore, Professor Department of Pathology,
More informationPrimary Cutaneous Follicle Center Lymphoma Associated With an Extracutaneous Dissemination
AJCP / Case Report Primary Cutaneous Follicle Center Lymphoma Associated With an Extracutaneous Dissemination A Cytogenetic Finding of Potential Prognostic Value Shivakumar Subramaniyam, PhD, Cynthia M.
More informationV. Acute leukemia. Flow cytometry in evaluation of hematopoietic neoplasms: A case-based approach
V. Acute leukemia Evaluating a sample for an acute leukemia Acute leukemia is a neoplasm of immature myeloid or lymphoid cells characterized by a block in maturation, usually at the stage of an early progenitor
More informationClinicopathologic features of 112 cases with mantle cell lymphoma
Cancer Biol Med 2015;12:46-52. doi: 10.7497/j.issn.2095-3941.2015.0007 ORIGINAL ARTICLE Clinicopathologic features of 112 cases with mantle cell lymphoma Dong-Mei Zhou, Gang Chen, Xiong-Wei Zheng, Wei-Feng
More informationPulmonary biopsy specimens demonstrate
A PRACTICAL APPROACH TO THE EVALUATION OF LYMPHOID AND PLASMA CELL INFILTRATES IN THE LUNG Fiona E. Craig, MD KEYWORDS Lymphoma Pulmonary Immunophenotyping Genotyping ABSTRACT Pulmonary biopsy specimens
More informationSolomon Graf, MD February 22, 2013
Solomon Graf, MD February 22, 2013 Case Review of FL pathology, prognosis Grading of FL Grade 3 disease High proliferative index in grade 1/2 disease Pediatric FL Future of FL classification 57 yo man
More informationGastric Carcinoma with Lymphoid Stroma: Association with Epstein Virus Genome demonstrated by PCR
Gastric Carcinoma with Lymphoid Stroma: Association with Epstein Virus Genome demonstrated by PCR Pages with reference to book, From 305 To 307 Irshad N. Soomro,Samina Noorali,Syed Abdul Aziz,Suhail Muzaffar,Shahid
More informationExtramedullary precursor T-lymphoblastic transformation of CML at presentation
Extramedullary precursor T-lymphoblastic transformation of CML at presentation Neerja Vajpayee, Constance Stein, Bernard Poeisz & Robert E. Hutchison Clinical History 30 year old man presented to the emergency
More informationTest Utilization: Chronic Lymphocytic Leukemia
Test Utilization: Chronic Lymphocytic Leukemia Initial Evaluation Diagnostic Criteria Selection of Tests for Prognosis Response to Therapy Challenges Assessment for persistent disease Paul J. Kurtin, M.D.
More informationLearn more about diffuse large B-cell lymphoma (DLBCL), the most common aggressive form of B-cell non-hodgkin s lymphoma 1
Learn more about diffuse large B-cell lymphoma (DLBCL), the most common aggressive form of B-cell non-hodgkin s lymphoma 1 Expression of B-cell surface antigens drives several non-hodgkin s lymphomas (NHLs)
More informationBone 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 informationAggressive B-Cell Lymphomas
Aggressive B-cell Lymphomas Aggressive B-Cell Lymphomas Stephen Hamilton Dutoit Institute of Pathology Aarhus Kommunehospital B-lymphoblastic lymphoma Diffuse large cell lymphoma, NOS T-cell / histiocyte-rich;
More information11/2/2017. 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 informationMorphologic and Immunopathologic Spectrum of Malignant Lymphoma: Review of 211 Cases
Morphologic and Immunopathologic Spectrum of Malignant Lymphoma: Review of 211 Cases M. Ashraf Ali, MD, FRCP(C); Mohammed Akhtar, MD; Magid Amer, MD, FRCS From the Department of Pathology and Laboratory
More informationMonoclonal B-cell Lymphocytosis
Entity Centred Approach Lymphoma Classification: WHO and Beyond Clinically meaningful categories Dr Stefan Dojcinov University Hospital of Wales, Cardiff WHO UPDATE - NEW ENTITIES Early lesions lymphoma
More informationLEUKAEMIA and LYMPHOMA. Dr Mubarak Abdelrahman Assistant Professor Jazan University
LEUKAEMIA and LYMPHOMA Dr Mubarak Abdelrahman Assistant Professor Jazan University OBJECTIVES Identify etiology and epidemiology for leukemia and lymphoma. Discuss common types of leukemia. Distinguish
More informationIncidence. 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 information3/23/2017. 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 informationA CASE OF PRIMARY THYROID LYMPHOMA. Prof Dr.Dilek Gogas Yavuz Marmara University School of Medicine Endocrinology and Metabolism Istanbul, Turkey
A CASE OF PRIMARY THYROID LYMPHOMA Prof Dr.Dilek Gogas Yavuz Marmara University School of Medicine Endocrinology and Metabolism Istanbul, Turkey 38 year old female She recognized a mass in her right neck
More informationLymphoma 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 informationHematopathology Specialty Conference Case #1
Hematopathology Specialty Conference Case #1 Robert (Bob) Ohgami, MD, PhD Assistant Professor Stanford University Disclosure of Relevant Financial Relationships Disclosure of Relevant Financial Relationships
More informationCase year old female presented with asymmetric enlargement of the left lobe of the thyroid
Case 4 22 year old female presented with asymmetric enlargement of the left lobe of the thyroid gland. No information available relative to a prior fine needle aspiration biopsy. A left lobectomy was performed.
More informationCase 4 Diagnosis 2/21/2011 TGB
Case 4 22 year old female presented with asymmetric enlargement of the left lobe of the thyroid gland. No information available relative to a prior fine needle aspiration biopsy. A left lobectomy was performed.
More information