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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 4061 - 15 August 2022 Posted By: Dr. Mona Abdel-Halim

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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F 24, Itchy papular eruption over the upper limbs and thighs of progressive nature for 2 months.


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Eman El-Nabarawy

Posted

Malassezia folliculitis (pityrosporum folliculitis). 

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vincenzo

Posted

1 hour ago, Eman El-Nabarawy said:

Malassezia folliculitis (pityrosporum folliculitis). 

Agree. Nice case, thanks, Mona. 

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Dr. Mona Abdel-Halim

Posted

If you look carefully in the provided images, you will find endothrix and ectothrix pattern of hair shaft invasion with fungal spores and septate hyphae characteristic of dermatophytic folliculitis. The patient reported close prolonged contact with cats infected with ringworm. In Malassezia folliculitis, only yeasts (including budding yeasts) are seen within keratin filled dilated infundibula. Clinically, some papules showed annular configurations. 

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