Source:http://linkedlifedata.com/resource/umls/id/C0206366
MSH: A calcification of the posterior longitudinal ligament of the spinal column, usually at the level of the cervical spine. It is often associated with anterior ankylosing hyperostosis.,NCI: A disorder characterized by benign depositions of calcium in the posterior longitudinal ligament. Signs and symptoms result from the compression of nerve roots and include motor and sensory disturbances in the lower and upper extremities, and pain in the neck and arms.