Limbus vertebra refers to the herniation of the disc under the ring apophysis before it fuses with the vertebral body. It presents as an oblique defect toward the outer surface of the vertebral body, most commonly at its anterior and superior border.
It can simulate fracture. The patient shown in this case had a CT of the abdomen at an outside institution that was interpreted as an L4 fracture. He had a CT and MR of the lumbar spine that were characteristic for a limbus vertebra.
Reference
R Kumar et al. The vertebral body: radiographic configurations in various congenital and acquired disorders. RadioGraphics 1988; 8: 455-485.
Limbus vertebra refers to the herniation of the disc under the ring apophysis before it fuses with the vertebral body. It presents as an oblique defect toward the outer surface of the vertebral body, most commonly at its anterior and superior border.
It can simulate fracture. The patient shown in this case had a CT of the abdomen at an outside institution that was interpreted as an L4 fracture. He had a CT and MR of the lumbar spine that were characteristic for a limbus vertebra.
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