When is CTC not recommended?
CTC is not advised for surveillance of patients at high risk for cancer including patients with hereditary syndromes (e.g., Lynch syndrome, hereditary polyposis, or nonpolyposis syndrome). This examination is not advised on the same day as OC where a deep biopsy or polypectomy is performed. CTC is also not appropriate for patients with acute colitis, recent surgery, symptomatic colon-containing abdominal wall hernia, known or suspected bowel perforation, and high-grade small bowel obstruction.
