我们以微波治疗2例大肠息肉恶变,并分别进行3年和9年的内镜随访观察,现报告如下。1 病例报告1.1 例1.患者女,44岁。1990年曾因结肠息肉行剖腹手术切除,术后便血停止。近1年再次出现腹痛,大便带血,均为鲜血,于1998—06—12来我院就诊。行纤维结肠镜检查,见降结肠距肛门50cm 处有一枚1.3cm×1.0cm 大小带蒂息肉,蒂较长,息肉光滑,但顶部明显充血,伴 We treated two cases of malignant colorectal polyps with microwaves and performed endoscopic follow-up observations for 3 and 9 years, respectively. The present report is as follows. 1 Case report 1.1 Case 1. Patient female, 44 years old. In 1990, he had undergone laparotomy for colon polyps, and his blood stopped after surgery. In the past year, abdominal pain, blood in the stool, and blood were present. He came to our hospital from 1998 to 06-12. For colonoscopy, see a 1.3cm x 1.0cm pedunculated polyp at the descending colon 50cm from the anus. The pedicle is longer and the polyp is smooth, but the top is markedly congested.