Two hours after eating the gallbladders from three carp that he had caught in Maryland, a Pennsylvania man developed abdominal pain, nausea, vomiting, and diarrhea. A few days later he consulted his doctor; his laboratory work showed that he had acute hepatitis (liver irritation) and kidney failure. He was hospitalized and required kidney dialysis. He gradually improved and was sent home. Bile in carp gallbladders contain components responsible for this syndrome. No specific treatment for the condition had been identified. Kidney and liver function generally improve within three weeks with supportive care.