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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 4077 - 06 September 2022 Posted By: Uma Sundram

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27 year old male with back lesion.


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This is a spindle-cell neoplasm situated in the reticular dermis in juxtaposition to a hair follicle. The spindle cells have elongated blunt-ended nuclei. Piloleiomyoma is the first thing that comes to mind. Myopericytoma and myofibroma are some differentials but there are no vessels in the tumour to support these diagnoses

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Meenakshi Batrani

Posted

1 hour ago, Anil Patki said:

This is a spindle-cell neoplasm situated in the reticular dermis in juxtaposition to a hair follicle. The spindle cells have elongated blunt-ended nuclei. Piloleiomyoma is the first thing that comes to mind. Myopericytoma and myofibroma are some differentials but there are no vessels in the tumour to support these diagnoses

Agree

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Uma Sundram

Posted

Unusual cellular dermatofibroma. Desmin and CD 34 negative. Factor13a is positive.

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I'm late, sorry. A difficult case for me. Thought of a weird nodular fascitis ( cellular ). Was so out of the way?  Thanks for this interesting case, Uma. 

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