Disc Protrusion

Lateral Disc Protrusion

A lateral disc protrusion is called so because it occurs at the side of the disc (lateral = on the side). It can be an intraforaminal or extraforaminal disc protrusion, or even both at the same time. Also, when a protrusion develops at both sides of the same disc, it is called bilateral protrusion.

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Extraforaminal Disc Protrusion

As with many of the other types of disc protrusion, the medical term extraforaminal disc protrusion merely indicates the precise location of the disc bulge. Other than a foraminal, or intraforaminal disc protrusion, this one occurs outside the foramen (that’s the opening of the backbone were the spinal nerve passes).

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