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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 4565 - 10 December 2024 Posted By: Admin_Dermpath

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
Submitted Date :
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79-year-old male with a solitary plaque on the right medial thigh. R/O SCC.
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Go to records December 2024

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Jacob

agree with porokeratosis

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smbaksh@psppath.com

smbaksh@psppath.com 0

Posted

Yes, That's the diagnosis.

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rezaazadi

rezaazadi 0

Posted

coronoid lamella in porokeratosis

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Atreyo Chakraborty

Atreyo Chakraborty 0

Posted

Coronoid lamella with Dyskeratotic foci underneath. No solar damage in dermis. Goes with Porokeratosis of Mibelli >> Inverse Porokeratosis. But let us remember Coronoid lamella is NOT sacrosanct of porokeratosis. It can also be seen with Warts, SCC etc although additional features of these diseases are missing here which makes us conclude this is porokeratosis (likely of Mibelli >> Inverse) 

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