1　病例报告男 ,5 5岁。因进行性吞咽困难 0 .5 a,伴胸前区疼痛 1个月入院。吞钡摄片 (图 1)示 :食管中下段约 9.5 cm长之食管扩张 ,其内有椭圆形肿块 ,表面分布有不均匀之小钡斑。诊断提示食管中下段息肉状肿瘤。术中可见 :食管中下段呈腊肠样膨大 ,腔内扪及一肿块 ,可上下滑 1 Case report Male, 5 years old. Due to progressive dysphagia 0. 5 a, with chest pain 1 month admission. The swallowed radiography (Fig. 1) shows that the esophagus of about 9.5 cm in length in the middle and lower esophagus is dilated, and there is an oval mass in it. There is an uneven small spot on the surface. Diagnosis suggests a polypoid tumor in the lower esophagus. During surgery, it can be seen that the middle and lower esophagus is swollen with sausage-like shape, and there is a cavity and a lump in the cavity.