Neurocysticercosis without detectable specific antibody

A 19-year-old girl who had lived in; India for five years until 1992 was ad mitted to Hokuto Hospital after general seizures which lasted for fifteen m inutes. Cerebral magnetic resonance imaging (MRI) showed a ring-enhanced le sion of 6 mm in diameter in the right parietal lobe. She underwent surgical resection after diagnosis of the brain tumor. Histopathological examinatio ns revealed that the resected tumor was a cysticercus of Taenia solium (T. solium), and we concluded that her seizures were caused by neurocysticercos is, Serological examinations by enzyme-linked immunosorbent assay (ELISA) a nd immunoblots to detect specific antibody against the glycoproteins of T. solium showed no detectable antibody response. The patient is under careful observation in our out-patient clinic with no medication.