Intramedullary dermoid cysts without spinal dysraphism are uncommon tumors. Only a few cases have been reported in the literature. We report a case of a 63-yearold woman with a spinal intramedullary dermoid cyst without rupture, but with progressive paraparesis and bladder dysfunction. Lumbar magnetic resonance imaging showed a large cystic lesion with inhomogeneous contrast enhancement and compression of the conus medullaris. Operation and histopathological examination confirmed a dermoid cyst. A follow up MRI imaging and examination was performed 4, 8 and 20 months after the operation. This case report adds to the few previous reported cases of intramedullary unruptured dermoid cysts and summarizes the latest literature.
Wojak HJ, Henker C, Erbersdobler A and Piek J
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