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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 1209 - 10 February Posted By: Guest

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
Submitted Date :
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88 year old man with 2.5 cm erythematous very firm nodule on the left abdomen.

Case posted by Dr Uma Sundram


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User Feedback


Agree with granular cell tumour. Coincidentally, I was reading about tumours with granular cells last week, after seeing an undifferentiated pleomorphic sarcoma with granular cells. I came up with this list: Melanoma, hibernoma, rhabdomyoma, leiomyoma and leiomyosarcoma, dermatofibroma and dermatofibrosarcoma and metastatic histiocytoid carcinoma. If anyone has more to add here, please do so.

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Dr. Mona Abdel-Halim

Posted

Very lovely tumor... Have seen five cases this last year ...

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Dr. Richard Carr

Posted

I checked my slide database and reference database with the following results:
Non-neural granular cell tumour; Granular cell BCC; Granular cell trichoblastoma (Battistella, Am J Dermatopathol 2013); case of spindle cell angiosarcoma that Arno Rutten put in the UK Skin EQA educational cases I noted focal granular cell changes; focal granular cell change in a glomangiopericytoma; AFX (very xanthomatous case almost granular cell); congenital granular cell epulis (mouth)

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Uma Sundram

Posted

Dear friends, my apologies for the late post. This is indeed granular cell tumor. The stain is S100 as you probably have already guessed, and the tumor is very strongly positive.

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