日前,直肠癌的手术治疗多采用保留肛门括约肌的术式。术后盆腔内复发率在3％～7％之间,其中一半见于术后第一年,38％见于术后第二年。复发的原因较多,但主要取决于肿瘤分期、周围淋巴受累情况及手术切缘距肿瘤的距离。作者自1986年,将 CT 和肠腔内超声显显像(EU)用于术前及术后直肠癌的诊断和分期,并报道如下。 A few days ago, surgical treatment of rectal cancer mostly used surgical procedures to retain the anal sphincter. Postoperative pelvic recurrence rates ranged from 3% to 7%, with half seen in the first postoperative year and 38% in the second postoperative year. There are many causes of recurrence, but it depends mainly on the stage of the tumor, the condition of peripheral lymphatic involvement, and the distance from the surgical margin to the tumor. The authors have used CT and intra-intrasonography (EU) for the diagnosis and staging of preoperative and postoperative rectal cancer since 1986 and report the following.