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In this section we have spot diagnoses posted on a daily basis since June 2010, now over 1700! You can review the archived cases and read the suggested diagnoses by users and the final comment by Dr Uma Sundram, the Editor-in-Chief and main spot diagnosis host. Case are uploaded each week day by 10 a.m. UK time with the correct diagnosis will generally be posted at 8 p.m. UK time. Why not view the most recent spot diagnosis and proffer a diagnosis?

Case Number : Case 2160 - 19 September 2018 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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13 year-old female with 18-20 month history of left forearm nodule, slowly increasing in size.


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The site of the lesion and epidermal changes which suggest that the lesion is scratched make me wonder whether it is a persistent insect bite reaction or a persistent pruritic nodule of scabies

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Dr. Hafeez Diwan

Posted

Angiolymphoid hyperplasia with eosinophilia.

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Alice Roberts

Posted

Differential is ALHE (favor), bite reaction/drug reaction/pseudolymphoma, infectious including scabies.  Would do fungal and AFB stains. Might do immunostains depending on clinical correlation. Levels to exclude a mite.

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