1病例报道患者,男,65岁,因间歇性便血及黏液样便2个月入院。患者2010年4月起无明显诱因出现大便不成形,便不尽感,间歇性伴有大便出血及黏液便。无明显腹痛及腹胀,当时未予以重视。后患者发现症状逐渐加重,便血次数增多,无明显规律,故于我院查肠镜示:距肛门10 cm直肠癌,肠镜无法 A case report patient, male, 65 years old, was admitted to hospital with intermittent bloody stool and mucoid stool for 2 months. Patients in April 2010 no obvious incentive to appear stool is not formed, it will not feel, intermittent with stool bleeding and mucus. No significant abdominal pain and bloating, was not taken seriously. After the patient found that the symptoms gradually increased, the increased number of blood in the stool, no obvious law, so in our hospital colonoscopy: 10 cm from the anus of the rectum cancer, colonoscopy can not