1980 年 29 巻 1 号 p. 154-156
The case of a 13-year-old boy with tight hamstrings is reported. He walked with his pelvis thrust forward and his knees semiflexed. Examination showed severe restriction of straight-leg-raising and marked limitation of forward bending of the trunk. Myelography showed filling defect in L5 S1 level. Laminectomy was done and intradural tumor was removed. The pathological diagnosis was epidermoid cyst.