title: Calcified nucleus pulposus visualizing disk rupture in plain roentgenogram.
mesh_terms: D002114:Calcinosis / Q000000981:diagnostic imaging; D006801:Humans; D007403:Intervertebral Disc / Q000000981:diagnostic imaging* / Q000293:injuries; D007405:Intervertebral Disc Displacement / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012421:Rupture; D013122:Spinal Diseases / Q000000981:diagnostic imaging*; D013904:Thoracic Vertebrae