Cerebral larval infection presenting as delayed encephalopathy and nonconvulsive status epilepticus: a case report.

Adult cerebral larval infections are rare. Humans are infected by contacting soil that contains infectious eggs or by eating undercooked meat. We encountered a patient with cerebral infection who showed recurrent altered mentality with nonconvulsive status epilepticus (NCSE). A 71-year-old male was admitted with complaints of drowsy mentality and abnormal behavior. Magnetic resonance imaging revealed non-enhanced multiple gliosis and calcified lesions. Electroencephalography revealed NCSE, which was cured with valproate. However, he was readmitted because of recurrence of symptoms. On cerebrospinal fluid examination, antibodies were observed. Subsequently, he was treated with albendazole and corticosteroids. Although corticosteroid improved his symptoms, the therapy could not be continued because the patient developed septic shock. This is the first report of cerebral larval infection presenting as delayed encephalopathy and NCSE. In patients with unexplainable progressive encephalopathy, particularly when gliosis or calcified lesions are observed on neuroimaging, cerebral larval infection should be considered and treated promptly.