Poster: A Rare Case Of A Generalized Body Rash In A Linear Pattern

Samantha Ang, Christopher Forest

Research output: Contribution to conferencePresentation


Shiitake Dermatitis is an erythematous rash in a “whiplash-like” pattern that usually occurs within 24-48 hours of consumption of raw or undercooked shiitake mushrooms. Only about 2% of the population has this reaction.
It is hypothesized to be a toxin-type reaction to lentinan, a polysaccharide in shiitake mushrooms, which breaks down when heated. Diagnosis is clinical, with a thorough patient history and physical exam. Rash is self-limiting and usually resolves in 10 days to 3 weeks.
Although rare, Shiitake dermatitis may cause significant distress, so it is important to recognize this rash and reassure patients that it is self-limiting
Original languageAmerican English
StatePublished - May 2017
EventAmerican Academy of Physician Assistants, 41st Annual PA Conference - Las Vegas, NV
Duration: May 1 2017 → …


ConferenceAmerican Academy of Physician Assistants, 41st Annual PA Conference
Period5/1/17 → …


  • Dermatology
  • Shitake Dermatitis


  • Medicine and Health Sciences

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