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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 993 - 14th April Posted By: Guest

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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The patient is a 63 year old white man with a biopsy taken from the nose.

Case posted by Dr. Mark Hurt.


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Dr. Mona Abdel-Halim

Posted

Inverted follicular keratosis.

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Dr. Richard Carr

Posted

Infundibular follicular keratosis (commonly known as inverted follicular keratosis and considered a variant of seborrhoeic keratosis).

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Robledo F. Rocha

Posted

At a first glance, squamous cell carcinoma, but a careful observation of some features, like infundibulum-centricity, smooth pushing border, some squamous eddies, and prominent intercellular bridges make me favor irritated seborrheic keratosis / inverted follicular keratosis.

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Mark A. Hurt MD

Posted

Here are some immunos: My diagnosis at 14:00 Central Daylight Time.

[img]https://dermpathpro.com/uploads/spot_diagnosis_comment_img/CASE993_image%2009.jpg[/img]

[img]https://dermpathpro.com/uploads/spot_diagnosis_comment_img/CASE993_image%2010.jpg[/img]

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Mark A. Hurt MD

Posted

My diagnosis was irritated seborrheic keratosis, in fact, "clonal" seborrheic keratosis. The CK10 shows "islands of sparing", which was described by[url="http://www.ncbi.nlm.nih.gov/pubmed/22236073"] Böer-Auer et. al. in 2012[/url].

By the way, you can read my anecdote from yesterday [url="https://dermpathpro.com/spot-diagnosis-1/_/free-spot-diagnosis-april-2014/april-2014/case-992-11th-april-r1031"]here[/url].

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