T1 axials pre-gad














































T1 axials pre-gad

Findings: Isointense soft tissue lesion (a) which occupies most of the diameter of the spinal canal at the L4-5 level, with a broad base adjacent to the right L4-L5 facet joint (fac) and the ligamentum flavum (lf). The thecal sac (th sac) is pushed ventrally and to the left. Exiting L4 nerve roots (L4). Spinous process of L4 (sp L4).