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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 3025 - 9 February 2022 Posted By: Dr. Hafeez Diwan

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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87 year-old male with biopsy of left neck lesion

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User Feedback

Richard Logan


I agree with porokeratosis. 

The infiltrate is rather more florid than is usual with that diagnosis.  Also the site is unusual for actinic porkeratosis.  I wonder about the early stage of solitary, giant porokeratosis (it certainly isn't giant yet!).

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Agree with SAP ( disseminated or single lesion? ). 

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