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Case Reports
. 2015 Mar-Apr;90(2):276-8.
doi: 10.1590/abd1806-4841.20153396.

Shiitake dermatitis

Camila Nemoto de Mendonça  1 , Priscila Mara Chaves E Silva  1 , João Carlos Regazzi Avelleira  1 , Fátima Satomi Nishimori  1 , Flavia de Freire Cassia  1
Affiliations
Case Reports

Shiitake dermatitis

Camila Nemoto de Mendonça et al. An Bras Dermatol. 2015 Mar-Apr.

Abstract

Shiitake Dermatitis is a skin eruption that resembles whiplash marks and occurs after consumption of raw shiitake mushrooms. It is caused by a toxic reaction to lentinan, a thermolabil polysaccharide which decomposes upon heating. We report the second case of this dermatitis in Brazil. A 25-year-old man presented with linearly arranged erythematous, pruritic papules on the trunk and limbs, after ingestion of a salad containing raw shiitake mushrooms. The eruption was self-limited, resolving within 10 days of onset. The recognition of this entity gains importance due to the increased consumption of shiitake mushrooms in occidental countries.

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Conflict of interest statement

Conflict of interest: None

Figures

FIGURE 1
FIGURE 1
Erythematous linear papules resembling whiplash marks on the lower limbs and more accentuated on the right leg
FIGURE 2
FIGURE 2
Erythematous linear papules on the abdomen
See this image and copyright information in PMC

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