腮腺混合瘤在口腔肿瘤中较常见,属于一种临界瘤,故须手术彻底切除肿瘤及罹患腮腺。由于面神经出茎乳孔后,总干丛入腮腺内分为5支,即颞支、颧支、下颌支、下颌缘支及颈支,术中应予以高度重视,尽可能防止面神经损伤。但有时组织严重粘连而不可避免地出现神经损伤,引起面肌麻痹。临床上常表现为额不能上抬,眼闭合不拢,口角歪向健侧等症状。 Parotid mixed tumor is more common in oral tumors, is a critical tumor, it must be surgery to remove the tumor and parotid gland. As facial nerve out of the styloid process, the total dry plexus into the parotid gland is divided into five branches, namely the temporal branch, zygomatic branch, mandibular branch, mandibular margin and neck support, surgery should be highly valued, as much as possible to prevent facial nerve injury. However, sometimes serious tissue adhesions and inevitably occur nerve damage, causing facial paralysis. Clinically manifested as forehead can not be raised, closed eyes closed, mouth crooked to the contralateral side and other symptoms.