男患，６３岁。因咽下困难半月于１９９６年７月６日住院。除自感进固体食物有梗咽感只能进半流食外，无其他不适。患者曾在１９７９年４月因右半结肠肿物作根治性切除，病理诊断：右半结肠腺癌。１９８９年９月因左肾盂肿物再次作手术切除，病理诊断：左肾盂移行细胞癌。... Male is 63 years old. Half a month due to dysphagia was hospitalized on July 6, 1996. In addition to the sense of steminess of the solid foods, they can only enter the semi-liquid food and have no other discomfort. The patient had had a radical resection of the right hemiceloid mass in April 1979. His pathological diagnosis was right hepatocarcinoma. In September 1989, a resection of the left renal plexus tumor was performed again. The pathological diagnosis was: left renal pelvis transitional cell carcinoma. ...