No shinkei geka. Neurological surgery
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"Spontaneous intraspinal canal hematomas' are rare clinical conditions. These are classified as epidural, subdural and subarachnoid. Especially, subarachnoid hematoma is rare only two cases being reported by Bouzarth (1968). ⋯ Etiology of the legion was not identified. The patient made an uneventful recovery. This case suggests that intraspinal canal hematoma needs an operation as soon as possible, especially with urinary retention.