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为了避免腮腺外科手术过程中损伤面神经，对３１具成年尸体（５７侧）腮腺内下颌后静脉与面神经关系进行解剖学研究。结果如下：下颌后静脉直径５．６±１．０ｍｍ。下颌后静脉位于面神经上、下干（或上、中、下干）内侧有５０侧（８７．８％）；位于面神经上干内侧，而在下干外侧有７侧（１２．３％）。依据下颌后静脉横过面神经不同部位，又分成若干亚型。其中较为常见者为下颌后静脉在面神经总干分支点与下干分支点之间的内侧横过（３３．３％）。在２６具双侧解剖的尸体中，有４例（１５．４％）下颌后静脉与面神经关系左、右侧不同
In order to avoid the damage of the facial nerve during the parotid surgery, 31 adult cadavers (57 lateral parotid gland) and the facial nerve were dissected. The results are as follows: Mandibular vein diameter 5.6 ± 1.0mm. The posterior mandibular vein is located on the facial nerve and has 50 sides (87.8%) medial to the inferior (or upper, middle, and lower) stems. It lies on the medial upper side of the facial nerve while has 7 sides (12.3%) lateral to the lateral stem. According to the mandibular vein across the different parts of the facial nerve, is divided into several subtypes. The more common one was the posterior mandibular vein (33.3%) medial to the medial branch between the DRM branch and the DRC branch. Of the 26 bilateral anatomical corpses, 4 (15.4%) left and right posterior mandibular veins had different relations with the facial nerve