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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 1319 - 14 July 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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31 year old male with long standing lesion on scalp, now with new growth.

Case posted by Dr Uma Sundram


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Eman El-Nabarawy

Posted

In a background of nevus sebaceous, LPLK in an attempt of regression of trichilemmoma.

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Dr. Mona Abdel-Halim

Posted

Nice theory suggested by Dr Eman.
Another theory:
The new growth could be a wart with focal trichilemmoma like area and focal attempt at regression.
I got this impression from the scanning magnification (silhouette) of the lesion and from the presence of dilated elongated capillaries in dermal papillae. I am not sure of the koiliocytes though :-))

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Guest Romualdo

Posted

I like Mona's theory: common wart with trichilemmoma-like area arising in a sebaceous nevus.

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Uma Sundram

Posted

Great job. Nevus sebaceus with verruca vulgaris/trichilemmoma and area of inflammation/regression.

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Guest Romualdo

Posted

Dr. Uma, when you write "verruca vulgaris/trichilemmoma" you mean that both verruca vulgaris and trichilemmoma are present or that either verruca vulgaris or trichilemmoma is present, but is impossible to decide which one?

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