A Poisoning Case Involving Gymnopus dryophiloides (Agaricomycetes).

Area of Science:

• Mycology
• Toxicology
• Food Safety

Background:

• Mushroom poisoning is a significant food safety concern in China, particularly in Yunnan province.
• There is a lack of detailed information on many mushroom poisoning incidents, including species identification and clinical manifestations.

Purpose of the Study:

• To conduct a detailed epidemiological investigation and species identification of a wild mushroom causing poisoning.
• To document the first reported poisoning case attributed to Gymnopus dryophiloides.

Main Methods:

• Morphological analysis of the consumed wild mushroom.
• Phylogenetic analysis for accurate species identification.
• Detailed epidemiological investigation of the poisoning incident.

Main Results:

• The mushroom was identified as Gymnopus dryophiloides (Omphalotaceae, Agaricomycetes).
• The patient experienced rapid onset of symptoms including nausea, vomiting, diarrhea, abdominal pain, dizziness, headache, drowsiness, chest tightness, shortness of breath, palpitations, and weakness.
• The incubation period was approximately 30 minutes, with symptom resolution within an hour after self-induced vomiting.

Conclusions:

• This study presents the first detailed report of human poisoning by Gymnopus dryophiloides worldwide.
• The findings highlight the need for increased awareness and accurate identification of potentially toxic wild mushrooms in the region.