Hello dr, recently I have done mri of si joint & c-spine + wss. Under si joint report shows 1. The sacrum & sacroiliac joints are intact. Other everything is normal. Under wss report shows 1. Wss: dorsal spine is unremarkable. 2. Lumbar spine: transitional vertebrae is noted at lumbosacral junction - sacralised l5 3. L4-l5: diffuse circumferential disc bulge causing indentation of thecal sac, encroaching bilateral lateral recess and mild narrowing of bilateral neural foramina. Can you please help with the meaning of these notes/points. Thanks.