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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 591 - 13 Sept 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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Male 40 years. Painful nodule on foot.
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Go to records September 2012

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Dr. Mona Abdel-Halim

Dr. Mona Abdel-Halim 508

Posted

Gouty Tophi... Amazing image!!!!

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Guest Amr Gohar

Guest Amr Gohar

Posted

[color="#000000"]As always, clinicopathological correlation. Foreign-body granulomatous reaction (macrophages, foreign-body giant cells and lymphoid cells). [b]Gouty tophus, [/b]this is a [b]formalin-fixed biopsy [/b]with dissolved urate crystals and amorphous pink areas corresponding to the sites of crystal deposition. In alcohol-fixed biopsy, the crystals appear brown and needle-shaped. [/color]

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Dr. Phillip McKee

Dr. Phillip McKee 130

Posted

Gout it is. I will put in an alcohol-fixed example later.

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