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National Specialist Dermatopathology EQA Scheme

National Specialist Dermatopathology EQA Scheme. Circulation L. Case number: 185 Clinical: Male aged 70 years. ?BCC Immuno: Pancytokeratin shows strong positivity in centre of lymphoid islands. EBV negative. Most popular diagnosis Lymphoepithelioma-like carcinoma .

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National Specialist Dermatopathology EQA Scheme

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  1. National Specialist Dermatopathology EQA Scheme Circulation L

  2. Case number: 185 • Clinical: Male aged 70 years. ?BCC • Immuno: Pancytokeratin shows strong positivity in centre of lymphoid islands. EBV negative.

  3. Most popular diagnosis • Lymphoepithelioma-like carcinoma

  4. Case number: 186 • Clinical: Male 44. Excision of irritated skin lesion behind right ear. • Specimen: Skin tag. • Macro: A grey polypoid fragment of skin 9x5x5mm.

  5. Most popular diagnosis • Epithelioid haemangioma

  6. Case number: 187 • Female 65 yrs. • Extending atrophic white plaque left anterior iliac region. • Macro: Elliptical piece of skin 20x6x6mm.

  7. Most popular diagnosis Morphoea

  8. Case number: 188 • Female aged 62. • ?Multiple cysts posterior neck. • Specimen: Punch biopsy • Macro: 3x3x4mm punch biopsy.

  9. Most popular diagnosis Malignant, probably metastatic lobular breast 9.70

  10. Case number: 189 • Female aged 48 years. • A.L.L. Had bone marrow transplant . • Had susequentGvHD. • Now thickened red, swollen skin • ?Leukaemic infiltrate. • Positive for CD79a, CD20, CD10, CD34, TdT. • Negative for CD2, CD3 and CD117.

  11. Most popular diagnosis • B lymphoblastic lymphoma

  12. Case number: 190 • Male aged 21 years. • Skin lesions from back ??melanoma . • Macro: A large ellipse of skin 75x33x25mm with a central area of depigmentation 37x25mm surrounded by slightly reddish periphery.

  13. Most popular diagnosis • Morphoea

  14. Case number: 191 • Male aged 60 years. • Skin left poplitealfossa excision. Five week history of nodule on skin. No pus. Has some insect bites. ?insect bite reaction, ?keratoacanthoma versus SCC. • Macro: Skin biopsy 18x13x2mm in depth with a centrally raised slightly keatotic lesion 5mm in diameter.

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