面神经下颌缘枝在许多头颈部手术中常露在外面,并有损伤的危险。由于解剖学的关系,该神经在转到下颌骨技下进入颈段处,更易遭受损伤。对于良性病变的手术(如颌下腺切除术),不应损伤该神经,而对癌瘤手术(如根治性颈廓清术,口腔癌的大块切除术等),引起神经的损 Facial mandibular limbs are often exposed outside of many head and neck surgeries and are at risk of injury. Due to anatomical relationships, the nerve enters the cervical segment at the turn of the mandible and is more susceptible to injury. For benign lesions of surgery (such as submandibular gland resection), should not damage the nerve, and cancer surgery (such as radical nephrostomy, oral cancer, large resection, etc.), causing nerve damage