Vertebral Venous Collaterals with Underlying Agenesis of the Inferior Vena Cava: Implications for Spinal Surgery

To our knowledge, this is the first report to describe the characteristic sign of “holey” pedicles on radiographic imaging in a patient with an underdeveloped IVC. This finding may be useful for the detection of abnormal spinal venous anatomy. In such patients, spinal surgery may carry greater risks and requires special consideration.