Fenestrated internal jugular vein: a rare finding in neck dissection

Internal Jugular Vein Fenestration and Duplication: Anatomical Findings, Prevalence, and Literature Review

“…Anatomical anomalies (duplication or fenestration) of the IJV are commonly underreported and its prevalence is limited to few case reports (8)(9)(10)(11)(12). Therefore, we present two additional cases and highlight its clinical presentation, anatomical characteristics, management, and prevalence through an extensive literature review.…”

“…IJV anatomical anomalies (fenestration and duplication) can be observed preoperatively by computed tomographic angiography (CTA) or during contrast enhancement CT imaging as part of clinical and radiological staging of patients (7,12,26,34). As demonstrated by Towbin and Kanal, who reported two cases of IJV fenestration identified through CTA (33).…”

“…It is worth to mention, that in our two cases no difference existed regarding diameter of the IJV branches (anterior and posterior branches), and that the common carotid artery was located behind the posterior branch. Even though this aspect has not been discussed, previous reports showed no asymmetry in diameter of the IJV duplications/fenestration (6,7,12,20). Furthermore, knowing the different types of IJV anomalies could be beneficial to avoid: (1) Iatrogenic injury of the IJV, if a duplication or a fenestration is not appreciated and the IJV is partially controlled during a ND, therefore causing copious bleeding, which might be challenging to control due to the presence of multiple feeders.…”