Concurrent occurrence of solitary spinal epidural osteochondroma and angiolipoma.

A unique concurrent occurrence of spinal epidural osteochondroma and angiolipoma was found in the first thoracic level of a 21-year-old man. The combined lesions produced longstanding motor and sensory disturbances because of compression of the corresponding segment of the spinal cord, and abrupt paraparesis presumably due to spontaneous hemorrhage from the angiomatous component of the angiolipoma. The neurological deficits were satisfactorily improved after surgical removal of the hematoma as well as of both lesions which were regarded as mesenchymal hamartomas.