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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 1722 - 3 January - Dr Uma Sundram Posted By: Guest

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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Clinical History: 50 year old male with right hand soft tissue mass.

Case Posted by Dr Uma Sundram


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Admin_Dermpath

Posted

I am away on holiday in lovely Italy so am posting all this week's Spot Diagnosis Cases in one go. Here is Dr Uma Sundram's excellent case for you to work on.

 

Ciao, Geoff Cross - DermpathPRO Projects

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Dr. Mona Abdel-Halim

Posted

Yes, I also thought of giant cell tumor of soft tissue

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Raul Perret

Posted

Yes giant cell tumor of soft tissue. Important to indicate a clinicopathological correlation in the diagnosis as a recidive of giant cell tumor from bone infiltrating soft tissues is not possible to perform accurately based on histology alone

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Robledo F. Rocha

Posted

Giant cell tumor of soft tissue, but metastasis or extension from its aggressive osseous counterpart must be rule out.

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Dimitris Chatzianastasiou

Posted

Great osteoclast-like giant cells, presumable osseous metaplasia (of course rule out bone erosion, but less likely); no perceivable cellular atypia in the mononuclear population, no mitoses, no necroses and a hint of circumscription (Image 1; top right). 
I also go for Giant cell tumour of soft tissue.
Very nice case :)

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Nitin Khirwadkar

Posted

Agree, giant cell tumour of soft tissue.

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Uma Sundram

Posted

Giant cell tumor. Excellent point by Raul. It turns out the patient had a bony giant cell tumor and this was a direct soft tissue extension. A very unusual case and i was glad to be able to see it. I think the 'hint' of circumscription is very unusual and somewhat misleading. Great point to do (always) clinicopathologic correlation.

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