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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 2403 - 16 September 2019 Posted By: Limin Yu

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
Submitted Date :
   (0 reviews)

36 y/o facial lesion.

Edited by Admin_Dermpath


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Trichofolliculoma. Even though saw some inner root sheath differentiation. Not really see the architecture of panfolliculoma.

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Many follicular components. A hair cortex comedo with matrix differentiation, a trichoepithelioma/trichiblastoma-like differentiation with pmb, an infundibular cystic component and an ORS. Not sure about an inner root sheath one, but...why not a panfolliculoma?

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My impression is trichofolliculoma, too. Almost all of the small buds are completely developed hair follicles. Therefore I don't favor a panfolliculoma.

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Dr. Richard Carr

Posted

Trichofolliculoma (cross cutting at the edge of the lesion most likely).

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