A Case of Spinal Extradural Cyst

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A case of spinal extradural cyst in thoracic region was reported. Fourteen year old boy was admitted into our clinic on May, 10, 1979. His symptomes were difficult in walking about 2 months ago and numbness of both feet after one month. His thoracic spine was slight kyphosis. His gait was spastic and sensory disturbance was slightly diminished below the level of the tenth thoracic dermatome. X-ray exam. showed that the pedicles of the fifth through tenth thoracic vertebrae were markedly narrowed and atrophic and then interpedicular space were enlarged. Myelogram showed in complete block above area. Laminectomy was done from T4 to T10. A large extradural cyst was encounted. The cyst had a communication with the dural membrane on right seventh thoracic nerve root. Then the cyst was completely removed. Now five months after surgery, the spastic gait and sensory disurbance disappeared.
西日本整形・災害外科学会の論文