title: Shiitake mushroom-induced flagellate erythema: A striking case and review of the literature.
abstract: Ingestion of raw or undercooked shiitake mushrooms is associated with a distinctive flagellate erythema. We describe a 61-year-old Caucasian man who presented with a pruritic, erythematous eruption of multiple linear streaks on the trunk and extremities starting 1 day after eating raw shiitake mushrooms. His symptoms and skin lesions resolved with minimal hyperpigmentation within approximately 1 week after treating with topical steroids and oral antihistamines. Skin biopsy showed non-specific findings, including a sparse perivascular and interstitial dermatitis as well as focal vacuolar interface changes. Our case illustrates that this condition is a visibly striking dermatitis with a self-limited course. The pathomechanism of the skin eruption remains unclear.
authors.affiliation: Department of Dermatology, University of California Davis, Sacramento, California.
authors.forename: Audrey S
authors.initials: AS
authors.lastname: Wang
authors.forename: Keira L
authors.initials: KL
authors.lastname: Barr
authors.forename: Jared
authors.initials: J
authors.lastname: Jagdeo
mesh_terms: D001706:Biopsy; D004890:Erythema / Q000188:drug therapy / Q000209:etiology* / Q000473:pathology; D006633:Histamine Antagonists / Q000627:therapeutic use; D006801:Humans; D017495:Hyperpigmentation / Q000188:drug therapy / Q000209:etiology / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009145:Mushroom Poisoning / Q000188:drug therapy / Q000209:etiology*; D011693:Purpura / Q000188:drug therapy / Q000209:etiology / Q000473:pathology; D020942:Shiitake Mushrooms; D014221:Triamcinolone / Q000627:therapeutic use
chemical_list: D006633:Histamine Antagonists; D014221:Triamcinolone