flagellate dermatitis

A characteristic rash caused by Shiitake mushrooms – An emerging concern?

mycolabadmin

Eating raw or undercooked Shiitake mushrooms can cause a distinctive whip-like rash in some people called Shiitake mushroom dermatitis. This dramatic rash appears 2-5 days after consumption but is not dangerous and goes away on its own in 10-14 days. The condition is caused by a compound called Lentinan that breaks down when mushrooms are cooked at higher temperatures, so properly cooking Shiitake mushrooms prevents the reaction.

Flagellate Dermatitis by Shiitake Mushroom

mycolabadmin

This case study describes a young man who developed whip-like linear rashes on his skin a few days after eating shiitake mushrooms. The rash, called flagellate dermatitis, is caused by a heat-sensitive substance in undercooked shiitake called lentinan. The condition is harmless and disappeared completely within a week after applying a steroid cream, highlighting the importance of cooking shiitake thoroughly to prevent this reaction.

Disease: flagellate dermatitis

A characteristic rash caused by Shiitake mushrooms – An emerging concern?

Flagellate Dermatitis by Shiitake Mushroom