Figure 1.
Sagittal T2-weighted MRI scan showing Pfirrmann grade 4 between L5-S1 and a disc protrusion at the same level without nerve compression.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.