Figure 1: Digital subtraction angiographic images from a 69-year-old woman with symptomatic, 90% stenosis of the V4 segment (intradural) of the vertebral artery.

The vertebral artery is divided into four segments (V1–V4; Figure 1). The V1 segment originates at the subclavian artery and extends to the transverse foramina of either the fifth or sixth ...

Doctors at Riley Hospital for Children recently performed a rare surgery on a baby from Booneville, who was suffering from “congenital vertebral dislocation.” This condition involves a spinal ...