Opens with a survey by Winawer of colorectal cancer, its precursors, and special syndromes. There follow chapters by other authoritative authors on relevant anatomy, comparison indications for other endoscopic instruments and barium enema, choice and care of sigmoidoscopes, setting up the service equipment and area, preparing the patient, informed consent, techniques, biopsy, complications, particular clinical applications (including infections), recognizing lesions, screening, costs, and training. Probably adequate but not generous illustration. References; index.