Persistent bilateral proatlantal type II artery

Proc (Bayl Univ Med Cent). 2013 Jan;26(1):50-1. doi: 10.1080/08998280.2013.11928918.

Abstract

Vascular anomalies and variants are common in patients undergoing imaging studies, and patients with these anomalies are generally asymptomatic. Remnants of fetal carotid-basilar circulation are rarely identified. We report a rare case of persistent type 2 bilateral proatlantal arteries, in which the patient presented with dizziness.