Delayed CT myelography in spinal intramedullary metastasis

Solitary intramedullary metastasis to the spinal cord is rare and difficult to diagnose clinically. We report a case of lung carcinoma metastasizing to cervical spinal cord with an unusual feature of delayed metrizamide enhancement of the widened portion of the spinal cord. The role of CT in the diagnosis is well demonstrated in this case.