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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 837 - 2nd September Posted By: Guest

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
Submitted Date :
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94 year old female with a solitary lesion.

Case posted by Dr. Mark Hurt.


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Robledo F. Rocha

Posted

Trichilemmoma. Cells are not typically clear, but there are other typically findings including peripheral palisading with reversed polarity, thick basement membrane, and central keratinization without granular cell layer.

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Dr. Richard Carr

Posted

Odd dys-cornification in the follicle ?trichodysplasia

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Guest Graham Reilly

Posted

I agree trichilemmoma.Not sure re abnormal cornification and significance.

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Guest Jim Davie MD

Posted

Pilar cyst.

For me, the concentric lamellar fibroblast arrangement peripherally (very common in pilar cysts), and the ghost cells centrally (with trace dystrophic calcification) with aberrant, minimal granular layer suggest pilar cyst.

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Mark A. Hurt MD

Posted

My diagnosis was: [i][b]hair cortex comedo.[/b][/i]

Ref: [url="http://www.ncbi.nlm.nih.gov/pubmed/20885284"]http://www.ncbi.nlm.nih.gov/pubmed/20885284[/url]

Thanks for your interesting differential diagnosis!

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