Other nasopharyngeal cysts include more lateral benign seromucinous retention cysts (Fig. 10), pharyngeal bursae of Luschka (between the longus colli muscle heads) and oncocytic cysts (Warthin's tumor, not reported in children).
Herniated Nucleus Pulposus. Definition. A herniated disc is a fragment of the disc nucleus which is pushed out of the outer disc margin, into the spinal canal through a tear or rupture.. In the herniated disc's new position, it presses on spinal nerves, producing pain down the accompanying leg. This produces a sharp, severe pain down the entire leg and into the foot.
Select a Procedure. Problems after Herniated Disc Removal. When an intervertebral disc becomes displaced into the area of the spinal canal, this is often called a slipped disc, herniated disc or sometimes an extruded disc (see the herniated disc section). When non-operative means have failed, surgery is sometimes recommended.