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In this section we have spot diagnoses posted on a daily basis since June 2010, now over 4000! You can review the archived cases and read the suggested diagnoses by users and the final comment by the contributors.
Case are uploaded each week day by 10 am UK time with the correct diagnosis will generally be posted at 8 pm UK time. Why not view the most recent spot diagnosis and proffer a diagnosis?

Case Number : Case 1076 - 7th August 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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36 year-old male with ankle mass.

Case posted by Dr. Hafeez Diwan.
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Go to records August 2014

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Guest Romualdo

Guest Romualdo

Posted

Tendon sheath giant cell tumor, possibly the diffuse variant.

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Dr. Mona Abdel-Halim

Dr. Mona Abdel-Halim 508

Posted

Giant cell tumor of tendon sheath

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Arti Bakshi

Arti Bakshi 286

Posted

Agree, Giant cell tumour of tendon sheath.
Typical admixture of mononuclear cells, xanthomatous cells and multinucleated giant cells.

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Robledo F. Rocha

Robledo F. Rocha 336

Posted

Tenosynovial giant cell tumor.

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Robledo F. Rocha

Robledo F. Rocha 336

Posted

[quote name='Romualdo' timestamp='1407408684']
Tendon sheath giant cell tumor, possibly the diffuse variant.
[/quote]
Why do you favor the diffuse variant?

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Dr. Hafeez Diwan

Dr. Hafeez Diwan 125

Posted

Giant cell tumor of tendon sheath. This was a well-circumscribed tumor.

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Guest Romualdo

Guest Romualdo

Posted

Robledo, I favored the diffuse variant based principally on the anatomical distribution of lesions: I read in Enzinger's book that 12 of 40 cases of the diffuse variant were located in the ankle/foot region but only 10 of 208 cases of the localized variant were located in this same region.

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