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FIG 3. Illustration of proposed mechanism of disk cyst formation.
A, Herniated disk (H) develops.
B, Fluid is generated by the herniated disk material (arrow). The dotted line indicates a pseudomembrane.
C, Relation of the herniated disk and a disk cyst. The hatched area indicates a disk cyst. The interruption of the disk cyst wall indicates the communication between the cyst and herniated disk.
(S, midline septum; D, dural sac; P, posterior longitudinal ligament.)
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