Shen J
Zhonghua Wai Ke Za Zhi. 1989 Feb;27(2):102-4, 126.
From 1981 to 1986, fiberoptic colonoscopy was performed in 2225 patients, of whom 356 cases (16%) were operated on for colorectal carcinoma and followed up for three months to twenty years. 27 cases were detected to have a second primary cancer and 1 case third primary cancer. In addition, 1 case of carcinoid, 6 cases of in-situ cancers, and 77 cases of adenomas were found. Among the 138 asymptomatic cases, 8 were proved to have a second cancer and 6 to be in early stage. Among the remaining 218 symptomatic cases, 26 with second cancers and 10 in the early stage were detected. The study shows that periodic colonoscopic examinations are mandatory for asymptomatic postoperative patients.
1981年至1986年期间，对2225例患者进行了纤维结肠镜检查，其中356例（16%）因结直肠癌接受手术，并随访了3个月至20年。检测到27例患有第二原发性癌症，1例患有第三原发性癌症。此外，还发现1例类癌、6例原位癌和77例腺瘤。在138例无症状病例中，8例被证实患有第二种癌症，6例处于早期。在其余218例有症状的病例中，检测到26例患有第二种癌症，10例处于早期。该研究表明，无症状的术后患者必须定期进行结肠镜检查。
