No shinkei geka. Neurological surgery
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A rare case of idiopathic brain stone with psychomotor epilepsy is reported. On December 9, 1982, a 29-year-old man with 18 years' history of psychomotor epilepsy was admitted to our neurosurgical service. He had no history of neonatal asphyxia, trauma or other neurological diseases. ⋯ Histopathological examination demonstrated thick collagen fibers and gliosis around the stone, and diagnosis of idiopathic brain stone was made. We reviewed five previously reported cases. We also emphasized an epileptogenicity of idiopathic brain stone and indication of surgical excision which may result in an excellent control of epilepsy.