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  • houston92
    Participant
    Post count: 2

    Hi, I understand that there is a difference between protrusion and extrusion. However, I am struggling to understand what these sentences mean in my MRI report -> specifically regarding the severity of my lumbar disc herniation (protrusion or extrusion). Any help would be appreciated. Thank you in advance!

    The anterior margin of the thecal sac is contacted and partially effaced greater to the left of the midline at the L5/S1 level. This is due to 2mm of disc material lateralizing left greater than right. There is partial compromise of the left lateral recess.

    Donald Corenman, MD, DC
    Moderator
    Post count: 8460

    The significance of the disc herniation depends upon the size and position of the herniation. “Extruded” herniations generally are bigger and therefore more compressive. “Extruded” means the herniation material has gone through the PLL (posterior longitudinal ligament) which is a stout structure that does not tear easily.

    Your radiological report does not demonstrate a large herniation (“The anterior margin of the thecal sac is contacted and partially effaced greater to the left of the midline at the L5/S1 level. This is due to 2mm of disc material lateralizing left greater than right. There is partial compromise of the left lateral recess”).

    Words like “partial compromise” and “partially effaced” don’t indicate a severe compromise but even a very small fragment in the exact incorrect location can cause severe pain.

    Dr. Corenman

    houston92
    Participant
    Post count: 2

    Thank you, Dr. Corenman, for your prompt reply. I appreciate it!

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