Claudication. There is degenerative spondylosis at L4-5 and L5-S1 with disc space narrowing and dessication. In particular, there is a central disc protrusion with annular fissuring at L4-5 that results in mild spinal canal narrowing, but no significant neural foraminal stenosis. Likewise, there is a central disc protrusion with annular fissuring at L4-5 that results in mild spinal canal narrowing, but no significant neural foraminal stenosis. There appears to be mild impingement of the adjacent nerve roots at these levels. There is no significant spinal canal or neural foraminal stenosis at the other levels of the lumbar spine. The vertebral column alignment is within normal limits. The vertebral body heights are preserved. The vertebral bone marrow signal is unremarkable. There is no significant spinal canal stenosis. The spinal cord displays normal signal and morphology. The paravertebral soft tissues are unremarkable. There is persistent dilatation of the proximal right renal collecting system.
1. Degenerative spondylosis at L4-5 and L5-S1. In particular, there is a central disc protrusion with annular fissuring at L4-5 and L4-5 that results in mild spinal canal narrowing, with apparent mild impingement of the adjacent nerve roots.2. Persistent dilatation of the proximal right renal collecting system. A renal ultrasound may be useful for further evaluation.