Postmyelographic CT evaluation of multiple blocks due to metastases.

A case of intraspinal metastatic carcinoma that presented on combined cervical and lumbar puncture metrizamide myelography as complete blocks at T2 and T12 is described. The extent of disease in the long segment of the spinal canal was inaccessible to conventional myelography. This case illustrates the importance of postmyelogram CT for accurate assessment of disease and for treatment planning.