Amanita bisporgera. Ingestion and death from mistaken identity.

A triphasic onset of subacute gastrointestinal toxicity, followed by a false recovery period, and, subsequently, late-onset hepatic failure is pathogenomonic of poisoning with cyclopeptide-containing Amanita mushrooms. This article presents the case report of 7 Minnesota residents who developed symptoms of Amanita poisoning after consuming cooked mushrooms picked at a county park. The article includes a review of the pathophysiology and management of Amanita poisoning.