1　病例介绍患者,男,65岁,因咳嗽伴胸痛3月余,进行性吞咽困难1月余入院。自述3月前在无明显诱因下出现咳嗽伴胸痛,继而出现吞咽因难,进食干饭时明显,且伴呃逆。食管纤维镜示距门齿30cm～33cm处,食管后壁上有一圆形隆起,大小约4.0cm×3.0cm,质软,表面不平,伴糜烂,局部管腔狭窄, 1 Case presentation Patients, male, 65 years old, with cough and chest pain for more than 3 months, admitted to hospital for dysphagia in January. After the self-reported three months ago, there was no obvious cause of cough with chest pain, followed by difficulty in swallowing, apparently when eating dry rice, and with hiccups. The esophageal fiberscope showed a 30cm to 33cm distance from the incisor, and a round bulge on the posterior wall of the esophagus. The size was about 4.0cm×3.0cm. The surface was soft and uneven, with erosion, partial stenosis.