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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 1173 - 22nd December 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 33-year-old man with a biopsy of a lesion on the right ring finger.

Case Posted by Dr Mark Hurt


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Mark A. Hurt MD

Posted

I forgot to include it, but EMA was negative.

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Dr. Mona Abdel-Halim

Posted

Ok, if EMA is negative then I agree with Romualdo, cellular digital fibroma.

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Dr. Richard Carr

Posted

I was also thinking cellular digital fibroma (probably a spectrum of lesions with superficial acral fibromyxoma).

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Dr. Hafeez Diwan

Posted

Agree. I also think this is a cellular digital fibroma.

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Mark A. Hurt MD

Posted

My Diagnosis:

[b]-- "CELLULAR" DIGITAL FIBROMA[/b]
[indent=1][b]COMMENT: [/b]I think that this lesion is best described as a "cellular" digital fibroma and it tends to meet the basic growth pattern requirement and immunostaining characteristics described in the literature. The differential is with a superficial acral fibromyxoma, which tends to show increased interstitial mucin, but can have close similarity to the "cellular" digital fibromas. Cases in the literature have shown an indolent course and two of the patients with followup described in one of the articles there was no evidence of persistent disease, and 12 of 14 patients did not return for followup.[/indent]


[center]Reference:[/center]


McNiff JM, Subtil A, Cowper SE, Lazova R, Glusac EJ. Cellular digital fibromas: distinctive CD34-positive lesions that may mimic dermatofibrosarcoma protuberans. J Cutan Pathol. 2005 Jul;32(6):413-8. PubMed PMID: 15953374.

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