Results : among all cases treated surgically , 4 cases were pleomorphic adenoma of the parotid gland ; 3 cases were malignant tumor of the parotid gland ; 1 case was zygomatic osteoma ; 4 cases were carotid body tumor ; 1 case was branchial cleft cysts ; 3 cases were cervical lymph node metastasis ; 2 cases were pharyngeal malignant tumor ; 4 cases were fibromatosis of the tongue ; 2 cases were dermoid cyst ; 2 cases were sublingual gland tumor 结果： 26例误诊病例，术前诊断腮腺?形性腺瘤4例，腮腺恶性肿瘤3例，颧骨骨瘤1例，颈动脉体瘤4例，鳃裂囊肿1例，恶性肿瘤颈淋巴结转移3例，咽部恶性肿瘤2例，舌部纤维瘤4例，口底皮样囊肿2例，舌下腺恶性肿瘤2例术后病理均证案为神经鞘瘤。
You can generally predict that intubation will be difficult if the patient has a history of difficult intubation , limited neck mobility , a small mandible , pharyngeal structures that are poorly visible through the open mouth with tongue extruded , a limited ability to open his or her mouth , or a laryngeal prominence that is close to the mentum 通常你能够预测到，以下情况插管会比较困难：如患者既往有插管困难的病史、颈部活动度受限、鄂部较小、通过开口牵拉舌而咽部结构可视度差、口腔开口受限、喉结与颏部较近等。
