尿崩症，小脳失調を呈し，15年後脊髄腫大を呈した29歳男性

A 29-year-old Man with Diabetes Insipidus and Cerebellar Ataxia and Development of Spinal Cord Swelling 15 Years after the Onset

症例呈示

　症例　T．S．，29歳男性

　既往歴　特記事項なし。

We report a 29-year-old man with diabetes in-sipidus and cerebellar ataxia who developed spinal cord swelling 15 years after the onset. He was well until 14 years of the age when he noted dizziness. Two years after there was an onset of gait distur-bance and slurred speech. He also noted polydipsia and polyuria. He was evaluated at the neurosurgery service of our hospital when he was 17 years of the age. Neurologic examination at that time revealed memory loss, horizontal nystagmus, cerebellar ata-xic gait, dysmetria and decomposition more on the left.