Duplicidad parcial de la vena yugular interna y su relación con el nervio espinal. Descripción de dos casos

Abstract

Introduction and objective: Duplication of internal jugular vein is a rare finding and, in most cases, it is diagnosed incidentally in the neck dissection. Description: We present two cases of unilateral partial duplication of the internal jugular vein after neck dissection in two patients with laryngeal carcinomas. Discussion: The internal jugular vein drains the blood of cranial cavity. Duplication can be unilateral, bilateral, partial or total. In some cases it is due to the passage of nerve structures causing a duplicate vein with an anterior and posterior branch. Conclusions: Duplication of internal jugular vein is a rare entity, but it is necessary to remember its existence in neck surgery, when reading angiograms and when placing central catheters.