Which of the following diagnoses best explains a well-marginated 9 mm ossicle in close proximity to the anterior superior margin of the L3 vertebra in a young nontrauma patient with low back pain?

Question

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A well-marginated ossicle near the anterior superior margin of a vertebra in a young, non-trauma patient with low back pain is most consistent with a Limbus bone. Limbus bones result from a separation of the vertebral ring apophysis, often due to a prior, possibly unrecognized, injury or stress, rather than acute trauma. This condition can cause low back pain and is differentiated from other conditions like intercalary ossicles, teardrop fractures, intervertebral disc calcification, and peripheral Schmorl's nodes, which have different etiologies and radiographic appearances.

Which of the Following Diagnoses Best Explains a Well-Marginated 9