PMC4900195_01
22-year-old male with lumbar discal cyst. AP radiograph of the lumbar spine shows slight curvature of the lumbar spine, six lumbar vertebral bodies (lumbarization of S1), and mild discogenic changes at L4-5.
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Plain radiographs of the lumbosacral spine demonstrated six lumbarized vertebral bodies with lumbarization of S1 and mild degenerative disc changes at L4-5 (Fig. 1).
22-year-old male with lumbar discal cyst. Sagittal T1- (A) and T2- (B) weighted images show a cystic structure extending from the L4-5 level inferiorly (arrows). The cyst demonstrates low signal on T1 and high signal on T2.
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A MRI scan demonstrated right paracentral herniation of the L4-5 disc, with a small annular tear associated with a cyst extending from the L4-5 level down to the L5-S1 level (Figure 2, Figure 3).
22-year-old male with lumbar discal cyst. Sequential axial T2 images (A-E) demonstrate a high-signal extradural cyst in the right ventrolateral space that appears to communicate with a small annular fissure at the L4-5 level, resulting in significant distortion of the right lateral recess and mass effect on the traversing right L5 nerve root (arrow). There is only minor mass effect on the right S1 nerve root.
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A MRI scan demonstrated right paracentral herniation of the L4-5 disc, with a small annular tear associated with a cyst extending from the L4-5 level down to the L5-S1 level (Figure 2, Figure 3).