Fenestration and duplication of contralateral internal jugular veins with concomitant cerebral arteries malformations

Abstract

Duplication and fenestration of IJV are rare malformations that are usually accidental findings during neck surgeries and anatomical dissections. Their prevalence is estimated at 1–2%, while the prevalence of IJV duplication alone is around 0.4%. This is the first reported case of both fenestration and duplication of the contralateral IJVs and one of few that confirm the coexistence of vascular malformations in other vessels — in this case, cerebral arteries. The awareness of the presence of IJV malformations can prevent complications during surgeries in the neck area and vascular procedures such as IJV catheterization.