In cases of adenomatous polyps colonoscopic follow-up examinations were performed every three years, but in cases of malignant polyps colonoscopic follow-up examinations were performed every three months.
En los casos en los cuales el pólipo era adenomatoso, la vigilancia se hacía con colonoscopia cada tres años y si el pólipo era maligno, a los tres meses, seis meses y un año.