South East England General Histopathology EQA Scheme
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1 South East England General Histopathology EQA Scheme RWF-CP-EQA-TEM24 Revision 1.4 South East England General Histopathology EQA Scheme Round UU Final Case Analyses Document title: Case Consultation Presentation Page 1 of 1 Approved by: Scheme Facilitator Date of issue: Jun 2013 Review Period: 2 years WARNING: This document is only controlled if viewed electronically from its original location or the hard copy is validated Validated by: (signature) Master copy registered on Pathology Qpulse database
2 Cases 563 to 574 Circulated January-February responses (89%) Prepared March 2014
3 Case 563 (1) Clinical M24. Tumour in right kidney. Specimen Right kidney. Macro Kidney (180 x 100x x 50mm) with a central well circumscribed solid yellow tumour (45 x 40 x 40mm) confined within the capsule.
4 Case 563 (2) Suggested Diagnoses Score 1. Papillary renal cell carcinoma Chromophil renal cell carcinoma Metanephric adenoma Xanthogranulomatous pyelonephritis 0.09 Most popular diagnosis Papillary renal cell carcinoma Reported Diagnosis Papillary renal cell carcinoma
5 Case 564 (1) Clinical F66. Staging laparotomy for right ovarian tumour. Specimen Right ovarian tumour. Macro 660gm, lobulated, smooth surfaced multicystic ovary. The principal cyst is filled with brown, turbid fluid and has a thickened, undulating wall which is partially lined by a necrotic yellow membrane. There are no papillary or solid areas. The wall thickness varies between 3-19mm.
6 Case 564 (2) Suggested Diagnoses Score 1. Clear cell carcinoma Clear cell adenocarcinofibroma 0.17 Most popular diagnosis Clear cell carcinoma Reported Diagnosis Right ovary combined serous cyst adenoma and clear cell carcinoma
7 Case 565 (1) Clinical F56. Nodule right lobe. Specimen Thyroid. Macro Right lobectomy comprising of a multinodular thyroid. Cut surface reveals two small colloid nodules at one edge each approx 15mm. The rest of the thyroid is largely occupied by a solid cream coloured mass with foci of necrosis and microcyst formation. The mass measures 52mm. Whole specimen weighs 68g and measures 70 x 45 x 24mm.
8 Case 565 (2) Suggested Diagnoses Score 1. Carcinoma Anaplastic/Meduallary/Follicular Most popular diagnosis Anaplastic carcinoma Reported Diagnosis Poorly differentiated follicular carcinoma with an anaplastic component
9 Case 566 (1) Clinical Specimen Macro M14. Traumatised mole on back. Skin. 14 x 7mm skin ellipse 4mm thick with 2mm nodule.
10 Case 566 (2) Suggested Diagnoses Score 1. Molluscum contagiosum Most popular diagnosis Molluscum contagiosum Reported Diagnosis Molluscum contagiosum
11 Case 567 (1) Clinical M64. Right lower lobe nodule of unknown aetiology -?malignant. Ex smoker. COPD. Specimen Wedge resection of lung. Macro A wedge of lung 75 x 28 x 23mm that includes a single nodule 22mm in maximum diameter.
12 Case 567 (2) Suggested Diagnoses Score 1. Non small cell / clear cell carcinoma Sugar tumour, more sampling required Poor differentiated?mucoepidermoid carcinoma Bronchioalveolar type carcinoma Poorly differentiated malignant tumour?scc?mm Well differentiated SCC 0.09 Most popular diagnosis Non small cell carcinoma (?primary) (?metastatic) Reported Diagnosis Adenocarcinoma, solid with mucin subtype.
13 Case 568 (1) Clinical M81. EUA + excision of thrombosed haemorrhoid? Specimen Haemorrhoid. Macro Five irregular pieces of haemorrhagic tissue measuring from 12mm to 35mm.
14 Case 568 (2) Suggested Diagnoses Score 1. Malignant melanoma Poorly differentiated malignant tumour for IHC 0.09 Most popular diagnosis Malignant melanoma Reported Diagnosis Malignant melanoma
15 Case 569 (1) Clinical F71. 6/12 history of weight loss, headache, eye pain. Orbital mass right eye, supranasally invading medial rectus. Mass taken from supranasal orbit?lymphoma. Specimen Orbital biopsy. Macro Two fibrofatty fragments larger 7 x 5 x 4mm.
16 Case 569 (2) Suggested Diagnoses Score 1. Metastatic carcinoma/metastatic MM/malignant Mucoepidermoid carcinoma (?) sino-nasal carcinoma Meningioma Lacrimal gland carcinoma Sebaceous carcinoma Olfactory neuroblastoma PNET/neuroendocrine tumour Lymphoma 0.01 Most popular diagnosis Metastatic carcinoma/metastatic MM Reported Diagnosis Metastatic adenocarcinoma (consistent with breast origin). Breast biopsy taken a few days later confirmed invasive ductal carcinoma.
17 This case has been excluded Case 570 (1) Clinical M69. Left ankle synovitis?pvns. Specimen Synovium. Macro A piece of tan tissue up to 22mm, one surface of which is covered by papillary processes. The pigment is positive with Perl s stain. This case has been excluded
18 This case has been excluded Case 570 (2) Suggested Diagnoses Score 1. Non-specific reactive/traumatic synovitis (?) Rheumatoid arthritis Pigmented Villonodular Synovitis (PVNS) Gout synovitis Inflammation and haemorrhage Amyloid Pseudogout Dendritic synovitis 0.05 Most popular diagnosis Pigmented Villonodular Synovitis (PVNS) Reported Diagnosis Pigmented Villonodular Synovitis This case has been excluded
19 Case 571 (1) Clinical F61. Lumpectomy left breast?benign. Specimen Breast. Macro A nodule of fibrofatty tissue, weighing 25 grams, measuring 50 x 35 x 20mm. There is an intracystic lesion in 7 out of the 9 slices measuring 30 x 30 x 12mm which appears clear of margins. Immuno: CK5/6, S-100 and SMA positive.
20 Case 571 (2) Suggested Diagnoses Score 1. Intraductal papilloma Encysted papillary carcinoma Adenomyoepithelioma Benign infarcted adenoma Unanswered 0.09 Most popular diagnosis Intraductal papilloma Reported Diagnosis Intracystic papilloma
21 Case 572 (1) Clinical M66. Erythroderma generalised lymphadenopathy. Specimen Groin lymph node. Macro Lymph node weighing 3.96g. 30 x 20 x 17mm. Slicing cut surface black. Immuno: CD20 positive in follicles and CD3 positive in paracortex.
22 Case 572 (2) Suggested Diagnoses Score 1. Dermatopathic lymphadenopathy Mycosis fungoides 0.18 Most popular diagnosis Dermatopathic lymphadenopathy Reported Diagnosis Dermatopathic lymphadenopathy
23 Case 573 (1) Educational Case Clinical F79. Bronchiectasis. Specimen Bone marrow trephine. Macro Specimen consists of a bony core of tissue measuring 15mm in length. Immuno: The large lymphoid cells are positive for CD30 and are negative for CD45, CD20, CD79a, CD3, CD5, CD15, EMA, ALK-1, CD68 and Mac387. There is a background of small T cells (CD2, CD3 and CD5) and B cells (CD20 and CD79a).
24 Case 573 (2) Educational Case Suggested Diagnoses were: Anaplastic null cell lymphoma Anaplastic large cell CD30 + lymphoma Hodgkin s lymphoma EBV associated LPD Progression of lymphomatoid granulomatosis Langerhans cell histiocytosis Hodgkins disease involving bone marrow Hodgkin s disease, lymphocyte depleted Granulomatous chronic inflammation and?hodgkin s disease Alk negative ALCL Granulomatous process Granulomatous inflammation?benign Hypercellular -?large cell anaplastic lymphoma Lymphoma Bone marrow involvement by classical Hodgkin lymphoma EBV lymphoproliferative disorder Systemic ALCL with necrotising granulomatous inflammation Syncytial Hodgkin s disease Polycythaemia and granulomatous inflammation?tb HIV related changes Granulomatous inflammation?mycobacterial?hodgkins CD30 positive lymphoproliferative disorder Histoplasmosis Bone marrow infiltration by Classical Hodgkin Lymphoma; also granulomatous/necrotic area need ZN etc to exclude concurrent TB CD30-positive Lympho-proliferative disorder with necrosis. Immunodeficiency likely Nodular lymphocyte predominant H-LY NHL Marrow involvement Hodgkin's Disease Necrosis with granulomatous reaction?fungal/viral infection Treated Hodgkin's lymphoma. Chronic myleogenous leukaemia Nectotising granuloma Histiocytosis X Reported Diagnosis: Classical Hodgkin lymphoma. Scattered with the granulomas are large, atypical lymphoid cells that range from mononuclear to oligonuclear and possess prominent nucleoli.
25 Case 574 (1) Educational Case Clinical F78. Multiple yellow/brown nodules on neck. Specimen Skin neck. Macro Punch biopsy of skin 3mm diameter & 4mm deep.
26 Case 574 (2) Educational Case Suggested Diagnoses: Reaction to cosmetic surgery Angiosarcoma Mastocytosis Interstitial granulomatous drug reaction Benign spindle cell lesion Multicentric reticulohistiocytosis Necrobiotic xanthogranulomatosis Reticulo-histiocytosis Granuloma annulare Melanoma Dermatofibroma variant Metastatic breast carcinoma vs granuloma annulare Fibrohistiocystic lesion?mast cell disease Mastocytoma Necrobiotic xanthogranuloma Rather poorly differentiated proliferation?fibrohistocytic,?histocytic,?melanocytic or?mast cell origin. Immuno panel could narrow the differential diagnosis.?malignant?pleomorphic fibroxanthoma Cellular dermatofibroma Mast cell distorder Odd dermatofibroma Odd melanocytic naevus Benign fibrohistiocytic lesion?juvenile xanthogranuloma Non necrotising granulomatous inflammation Epitheliod sarcoma Necrobiotic granulomatous lesion Pervascular Granulmatous dermatitis possibly related to a drug eruption Mast cells Angiocentric necrobiotic xanthogranuloma Xanthogranuloma Intermediate cell histiocytosis Xanthoma Reticulohistiocytoma Differential includes Cutaneous mastocytosis and Langerhans histiocytosis. Xanthoma of skin Naevus?type?Rericulohistiocytoma Metastatic melanoma Histiocytoma Melanoma Benign naevus spindle cell/spitz Choloroma/AML Langerhans histiocytosis?telangectasia macularis eruptiva pertans?xanthoma disseminatum Epithelioid sarcoma Histiocytic sarcoma/reticulum cell sarcoma Malignant tumour? Melaoma?Leukaemia cutis Naevus Actinic granuloma Spindle cell xanthogranuloma Reported Diagnosis: Necrobiotic xanthogranuloma.
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