患者,男,56岁,主诉进行性吞咽困难一月余。体检:消瘦,锁骨上淋巴结未肿大,血色素9.7％。食管钡餐检查,钡剂通过缓慢,食管中下段管腔内可见一巨大充盈缺损,内可见多个钡斑,形态不规则,粘膜紊乱,中断破坏,且食管后壁凹凸不平,病变范围约17cm长,食管明显扩张约4.5cm宽,但病变段食管外壁光整,未见龛影,食管下段无狭窄,贲门可自然开放,胃十二指肠正常(见图)。当时X线诊断为 The patient, male, aged 56, complained of having difficulty swallowing for more than a month. Physical examination: weight loss, no enlargement of supraclavicular lymph nodes, hemoglobin 9.7%. Esophageal barium meal examination, tincture through the slow, esophageal can be seen in the lower lumen of a huge filling defect, visible within the multiple freckle, irregular shape, mucosal disorders, interruption of destruction, and esophageal wall uneven, lesions about 17cm long The esophagus was significantly expanded by about 4.5cm in width, but the outer wall of the esophagus in the diseased segment was smooth, no gingival shadows were seen, and there was no stenosis in the lower esophagus. The cardia was naturally open and the gastroduodenal was normal (see Figure). The X-ray diagnosis was