Extraneural manifestations of toxoplasmosis often are not recognized antemortem in patients with AIDS. We describe a patient who was seropositive for human immunodeficiency virus and presented with lethargy, abdominal tenderness, rapidly progressive ventilatory failure, rhabdomyolysis, myoglobinuria, and disseminated intravascular coagulation. Although the diagnosis of pancreatitis was not considered while the patient was alive, an autopsy demonstrated pancreatic necrosis associated with toxoplasmal cysts. No other infection was evident. This case suggests that Toxoplasma gondii can cause severe pancreatitis in patients with AIDS.