正确了解直肠肿瘤累及范围及其浸润肠壁与邻近组织的深度常有助于正确判断患者预后以及选择合理手术治疗方案。既往常根据肛门直肠指检、X线钡剂灌肠、直肠镜和近年来的CT检查等方法对直肠肿瘤进行术前分期。随着超声诊断仪和探头的改进,凭借高频率直肠探头腔内检查常有助于直肠肿瘤的术前分期。现将5例经直肠腔内超声检查的病例报告如下。 资料来源 1988～1989年间,对5例因便血,直肠指检有直肠肿块的患者进行经直肠腔内超声检 Correct understanding of the range of rectal tumor involvement and the depth of infiltration of the intestinal wall and adjacent tissue often helps to correctly judge the patient’s prognosis and select a reasonable surgical treatment program. Previously, preoperative staging was performed on rectal tumors based on anorectal rectal examination, x-ray barium enema, proctoscopy, and recent CT examinations. With advances in ultrasound diagnostics and probes, intraluminal examination with high-frequency rectal probes often helps preoperative staging of rectal cancer. Five cases of transrectal ultrasonography are reported below. Data sources Transrectal ultrasonography was performed on 5 patients with rectal mass due to blood in the rectum after 1988 to 1989