進行性の歩行障害・構音障害を呈した63歳男性

A 63 year old Man with Progressive Gait Disturbance and Dysarthria

症例呈示

　症例　Y．T．，63歳，男性。

　既往歴　気管支喘息，交通事故（20年前）のため右眼球摘出，胃ポリープ（2年前）。

We report a 63 year old man with progressive gait disturbance and dysarthria. The patient was apparently well until the age of 62 (February, 1990) when he noted unsteadiness of gait. Two months later, dysarthria appeared. He was admitted to Juntendo Izunagaoka Hospital on April 23, 1990.

Neurologic examination revealed a mentally sound man with normal higher cerebral functions. Cranial nerves were unremarkable except for scan-ning speech. His gait was ataxic with positive Romberg sign. No motor weakness was noted, however, he had hypotonia and cerebellar ataxia.