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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 2799- 30 March 2021 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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75M ,Left hand incision biopsy.

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Too difficult for me...but like the diagnosis of Richard. 

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Thank you for your comments. Richard was entirely correct ! 

Here is my description and diagnosis - Skin with vascular infiltration of the upper, mid and deep dermis with predominant neutrophils and fewer lymphocytes, eosinophils and plasma cells. Leucocytoclasia is evident. In areas there is sclerosis with residual foci of leukocytoclastic vasculitis. Deep dermis the sclerosis is
striking and storiform pattern.

Diagnosis- Erythema Elevatum Diutinum.

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