Mushroom poisoning from species of genus Inocybe (fiber head mushroom): a case series with exact species identification.

Abstract in brief

• This report discusses a series of 14 cases of mushroom poisoning caused by specific species of the Inocybe genus, which are mycorrhizal mushrooms containing the toxin muscarine, leading to muscarinic symptoms.
• Patients showed symptoms such as nausea, vomiting, diarrhea, abdominal pain, salivation, sweating, rapid or slow heart rate, low blood pressure, tearing, blurred vision, small pupils, tremors, agitation, flushing, and fainting, usually beginning within 15 minutes to 2 hours after eating the mushrooms.
• Treatment mainly involved supportive care like IV fluids, antiemetics, and atropine, which effectively led to full recovery within 12 hours in all cases, with the mushrooms confirmed to be Inocybe fastigiata, Inocybe geophylla, and Inocybe patouillardii by an expert mycologist.