多椎体にｓｃａｌｌｏｐｉｎｇを起こした脊髄脂肪腫の１例

Abstract

Spinal lipomas are rare, constituting only 1 percent of primary spinal neoplasms.We report on a 65-year-old female with an intradural lipoma which caused scalloping in the Th11-L1 vertebras. On admission, the patient had lumbago, pollakiuria and hypesthesia of the left lower leg and bilateral sole. Radiological studies including CT scan ahd MRI enabled the detection of an intradural spinal lipoma. Generally, lipomas are shown as low density areas of approximately -90 H. U. on CT scan. In MRI, lipomas are shown as high intensity on T1-weighted spin-echo images. Only partial removal of the intradural spinal lipoma was possible, as its boundary with the spinal cord was not clearly demarkated. In the 8 months following surgery, recovery from lumbago and lower leg numbness was observed.