Scalp Vein Detected Using Internal Carotid Angiography that Did Not Result in Venous Sinus Compromise

Serial venous-phase angiograms of the right internal carotid artery shows a scalp vein arising from the superior sagittal sinus via the parietal emissary vein and draining into the deep posterior cervical vein. The left transverse sinus is hypoplastic. A, C, and E, Towne projections; B, D, and F, lateral projections