What are the physical findings characteristic of Pityrosporum folliculitis?

Updated: Oct 08, 2020
  • Author: Elizabeth K Satter, MD, MPH; Chief Editor: Dirk M Elston, MD  more...
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Answer

Pityrosporum folliculitis, typically seen in young adults, with a slight female predominance, presents as intensively pruritic small uniform papules and pustules on the back, chest, and shoulders. Facial involvement may resemble monomorphous acne and may have less pruritus. [32] It occurs more often in warm, humid climates and may be more frequent in immunocompromised patients or in patients on long-term antibiotics. This eruption is due to follicular infection by Malassezia furfur, which is a lipophilic yeast. [26]


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