fig 3.

Case 6: 31-year-old man with an intramedullary hemangioblastoma at T8–T9 who underwent embolization the day before surgery.

A, Preembolization angiogram shows that the posterior radiculomedullary artery (arrow), mainly supplying the intradural tumor, originates from the right ninth intercostal artery.

B, Angiogram after embolization with coils (large arrow) shows occlusion of the intercostal artery distal to the feeder, and the presence of another normal branch originating just distal to the feeder. Infusion of PVA particles with preferential flow and infusion of Gelfoam was then performed through the microcatheter (small arrow) close to the feeder.

C, Postembolization angiogram shows complete occlusion of both the feeder and the normal branch.