Neuroradiological examination in a case of polyostotic Morbus Paget with compression of the thoracic spinal cord was extended to spinal computed tomography. The use of radiography, myelography, and skeletal scintigraphy as regards diagnostic information is compared to CT. Obviously the use of CT provides a valuable completion for the evaluation of extradural space-occupying spinal lesions. Undisturbed by overlying structures of CT has the potential to differentiate various types of tissues. CT clearly depicts the lesion and aids in the recognition of the type of the compressing foreign body, which in this case was an osteoma-like protrusion.