2015
DOI: 10.1590/abd1806-4841.20153396
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Shiitake dermatitis

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 o… Show more

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Cited by 17 publications
(12 citation statements)
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“…). Twenty‐nine articles were included, comprising a total of 50 cases of patients with shiitake dermatitis . Articles consisted of case reports (24 patients) and case series (26 patients).…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…). Twenty‐nine articles were included, comprising a total of 50 cases of patients with shiitake dermatitis . Articles consisted of case reports (24 patients) and case series (26 patients).…”
Section: Resultsmentioning
confidence: 99%
“…Shiitake dermatitis occurs in a unique clinical setting in which presumably genetically susceptible individuals are exposed to large amounts of uncooked or undercooked mushrooms: a total of 36 of the eruptions included in our review material occurred in this setting . This introduces the concept that inadequate cooking is a possible determinant of the occurrence of shiitake dermatitis.…”
Section: Discussionmentioning
confidence: 99%
“…5,6 Histologically, however, our case exhibited necrotic keratinocytes in the epidermis and infiltration of lymphocytes and eosinophils in the dermis, suggesting a drug eruption rather than shiitake dermatitis, which is histologically characterized by a spongiotic epidermis, papillary dermal edema and lymphocytic infiltration. 6 Such a necrotic change of keratinocytes had been found in acute cutaneous reactions including drug eruptions. Bleomycin is a representative drug inducing flagellate erythema and the presence of necrotic keratinocytes in the epidermis as in our case.…”
Section: Discussionmentioning
confidence: 67%
“…Although side effects of lentinan are rare, anaphylaxis after intravenous administration has been reported in some clinical cases [ 114 ]. Anaphylaxis could be caused by a toxic reaction to lentinan as there are also case reports of contact dermatitis, asthma, rhinitis, and hypersensitivity pneumonitis in shiitake workers [ 115 ]. These cases indicate the need to conduct additional (preclinical) studies, as regulators take the safety of novel food and new agents as their primary consideration [ 112 ].…”
Section: Trained Immunitymentioning
confidence: 99%