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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 4420 - 29 December 2023 Posted By: Iskander H. Chaudhry

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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89-year-old female with left upper cheek incision. Biopsy of ?Superficial BCC Left cheek. Non-healing flat pink lesion over 12/12 HX.

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Can we see κ and λ chains? I am thinking plasmacytoma i cant rule out what Vincenzo said since plasma cells tend to be abundant in this location.

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Iskander H. Chaudhry


Many thanks everyone for your comments. The final diagnosis is: Lichenoid Keratosis

Best wishes

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