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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 2236 - 8 January 2019 Posted By: Uma Sundram

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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15 year old male with lesion on 3rd finger of right hand.


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Granuloma annularre vs mucinous eccrine nevus.

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Anil Patki

Posted

Acquired digital fibrokeratoma. Clinico pathological correlation is important here. Even a Koenen's tumour may look like this. 

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Not typical, bufavor Superficial Acral FibroMyxoma.

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Meenakshi Batrani

Posted

Superficial acral fibromyxoma, likely

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Alex-Ventura-Leon

Posted

Superficial Acral Fibromyxoma vs Acquired Digital Fibrokeratoma.

I favor the first.

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Uma Sundram

Posted

Great suggestions. I would also add digital dermatofibroma and supernumerary digit. S100 and CD34 are both negative. I favored acquired digital fibrokeratoma but superficial acral fibromyxoma is also a possibility; CD34 negative cases have been reported. The patient does not have a history of TS. 

These are difficult cases and there can be overlap among all these entities.

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Please Dr Uma, what's the 2232-case's diagnosis?

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Dr. Richard Carr

Posted

I was leaning towards a tiny dermatofibroma (which I don't think I've ever seen on a finger) but have to agree it's not easy to classify!

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