Osteochondrosis of the lumbar spine with bone vegetations along terminal plates, spreading to the front and to the back. Incomplete sequestration of L4-L5 disk with caudal dislocation (1) behind the posterior longitudinal ligament. Posterior hernia of L5-S1 disk (2) with epidural fibrosis (3).
Osteochondrosis of the lumbar spine with Schmorl's bodies (1) and Pommer's hernias (2). Posterior hernias of L4-L5 and L5-S1 disks (3, 5) with fibrous tissue, covering the posterior surface of L5 body - resorbing sequester, which shifts the posterior longitudinal ligament (4).