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1 From the Department of Radiology, University of Minnesota Hospitals, Minneapolis, Minnesota
1. Seven patients with spinal dysraphism and intraspinal lipomas were evaluated with plain film spine roentgenography and large volume myelography.
2. All patients showed a large dural sac. In 5 patients the conus medullaris was identified in a more caudal location than normal. In 3 patients the lipoma was identified in an extradural location, in 1 case the tumor was seen in both an intradural and extradural location and in 1 case the tumor was seen only intradurally. In 2 patients, the site of the lipoma could not be indentified, but the presence of a low-lying conus medullaris together with a large dural sac was strongly suggestive of this entity.
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