Detection of Silent Colon Cancer in Routine Examination

Abstract

Cancer of the colon and rectum is our most common internal cancer.1 The majority of the cases can be discovered by digital and/or sigmoidoscopic ex amination.2 The remainder, above the sigmoidoscopic level, can usually be de tected by barium enema roentgeno graphic examination. Although the dis ease is frequently curable by surgical excision, it kills more Americans each year than any other cancer except lung cancer.1