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In this section we have spot diagnoses posted on a daily basis since June 2010, now over 4000! You can review the archived cases and read the suggested diagnoses by users and the final comment by the contributors.
Case are uploaded each week day by 10 am UK time with the correct diagnosis will generally be posted at 8 pm 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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Go to records August 2022

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Eman El-Nabarawy

Eman El-Nabarawy 69

Posted

Malassezia folliculitis (pityrosporum folliculitis). 

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vincenzo
1 hour ago, Eman El-Nabarawy said:

Malassezia folliculitis (pityrosporum folliculitis). 

Agree. Nice case, thanks, Mona. 

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Dr. Mona Abdel-Halim

Dr. Mona Abdel-Halim 508

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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