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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 1093 - 1st September 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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The patient is a 53-year-old woman with an excision with margin exam of an enlarging lesion present for two years taken from the right superior aspect of the back.

Case posted by Dr. Mark Hurt


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Guest xcmuchattanooga

Posted

DFSP. I do not see areas of transformation into high-grade sarcoma.

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Robledo F. Rocha

Posted

Dermatofibrosarcoma protuberans. Entrapment of single adipocytes by proliferation of spindle cells in storiform arrangements. Uniform expression of CD34 is typical.

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DFSP. Too cellular and too storiform for spindle cell lipoma and, on the first image, appears as invading fat, as opposed to forming fat.

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Mark A. Hurt MD

Posted

My diagnosis was DFSP. I thought this was a relatively classical case, but there are areas in it that have been described as "atrophic" (upper left on the scanning shot). As you might imagine, a small biopsy through this portion of the lesion might result in a different diagnosis.

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