一、临床资料例１女，３５岁。咽部肿胀半年伴吞咽困难４月、呼吸困难２月。咽部检查见上腭部悬雍垂后方之咽后壁悬垂状肿物约核桃大小，质硬。Ｘ光片提示肿块位于颈１～４椎体前，第２颈椎前缘骨质破坏。术中见肿块位于咽后壁粘膜下，紧附于椎体前，上起口咽悬雍垂下端，... I. Clinical data Example 1 Female, 35 years old. Swollen pharyngeal with dysphagia for 4 months and dyspnea for 2 months. Examination of the pharynx revealed that the posterior wall of the pharyngeal wall behind the sacral canthus is approximately the size of a walnut and hard. The X-ray film suggested that the mass was located in front of the vertebral bodies of the neck 1 to 4, and the bone destruction of the leading edge of the second cervical spine. In the surgery, the masses are located in the posterior pharyngeal wall and adhere to the vertebral body.