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Volume rendering (VR) reconstruction images of the anterior aspect of the lumbar vertebrae. This case has lumbar ribs and lumbarisation. a If the lowest ribs are interpreted as 12th ribs (white arrows), the lumbar spinal configuration might be identified as normal. b By counting inferiorly from C1 or C2, the lowest ribs are identified as lumbar ribs and the lowest non-fused vertebra as S1
