Radiculopathy due to Osteochondroma of Articular Process of Cervical Spine. A Case Report.

Osteochondromas are the most frequent primary benign bone tumors. They commonly arise from the metaphysics of long bones. But lesions in the spine are rare. We report a case of osteochondrama of articular process of cervical spine with radiculopathy. The case was a 22-year-old man with pain in the right shoulder to upper arm. Physical, neurological and laboratory studies were normal. X-P and CT revealed bone tumor in the superior articular process of C-6, and narrowing intervertebral foramen of C5/6. MRI showed a low signal intensity area, partially containing a high signal intensity area. the tumor was excised and histologic examination of the tumor specimen revealed the characteristic pattern of an osteochondroma. The patient's symptoms improved remarkably after operation.