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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 2748 - 18 January 2021 Posted By: Richard Logan

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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F41, nodule arm

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Granular cell tumour with pseudoepitheliomatous hyperplasia. S100+ Nice one!

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Richard Logan


Yes - you've all nailed it.  Granular cell tumour it was.  I don't have any confirmatory immunos.

There hasn't been one on the website since 1st October 2018 so I thought it was time for another one!

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The so called PEH is often so much alike that I usually mistake it for a true SCC before discovering the Granular Cell Tumor component. Thanks for this nice case, Richard. 

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