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In this section we have spot diagnoses posted on a daily basis since June 2010, now over 1700! You can review the archived cases and read the suggested diagnoses by users and the final comment by Dr Uma Sundram, the Editor-in-Chief and main spot diagnosis host. Case are uploaded each week day by 10 a.m. UK time with the correct diagnosis will generally be posted at 8 p.m. UK time. Why not view the most recent spot diagnosis and proffer a diagnosis?

Case Number : Case 2489 - 20 January 2020 Posted By: Iskander H. Chaudhry

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
Submitted Date :
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Vertex scalp, biopsy. 3cmx4cm mass vertex scalp, 1 month started as small pink lesion


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Macronucleola/fascicular pattern/foamy cytoplasm. ?Clear cell sarcoma   ?Metastatic renal cell clear cell carcinoma   ?Clear cell AFX(age?).

 

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Krishnakumar subramanian

Posted

other possibility is Balloon cell melanoma

IHC is needed

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1 hour ago, Krishnakumar subramanian said:

other possibility is Balloon cell melanoma

IHC is needed

Agree!

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I would like to add sebaceous carcinoma as a differential diagnosis, but I think this is a baloon cell melanoma.

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Dr. Mona Abdel-Halim

Posted

All possibilities have been already mentioned. Looking forward to the IHC!

 

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Admin_Dermpath

Posted

The final diagnosis was clear cell AFX !!! From immuno and final excision may I add 

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