Shiitake mushroom Flagellate Dermatitis: Case report

Abstract

Shiitake mushroom flagellate (Lentinula edodes) dermatitis is a cutaneous reaction caused by ingestion of raw or undercooked Shiitake mushrooms. Classic cutaneous symptoms consist of linear erythema with the presence of papules or papulovesicles, associated with the Koebner phenomenon and marked itching. Pathophysiology is currently under study. However, it is believed to be caused by Lentinan, a heat-labile ß-glucan that is present in the fungus. It was initially reported in Japan. Nonetheless, cases escalated worldwide as cultivation and consumption of the Shiitake mushroom became more popular.