Persistent double dorsal aorta in patient with cavernous sinus thrombosis: A case report.

Persistent double dorsal aorta is a rare congenital anomaly of the descending aorta in which the descending aorta is divided into 2 lumens below the ligamentum arteriosum. There are only a few cases reported to date. A 52-year-old female presented with right ptosis since 2 months prior.