What are the signs and symptoms of colon carcinoma caused lower gastrointestinal (GI) bleeding (LGIB)?

Updated: Jul 26, 2019
  • Author: Burt Cagir, MD, FACS; Chief Editor: BS Anand, MD  more...
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The bleeding associated with colon cancer, particularly right-sided bleeding, can be insidious, with patients presenting with iron-deficiency anemia and syncope. Right-sided colon cancer may also present with maroon stools or melena, whereas left-sided colonic neoplasms can present as bright red blood per rectum, which can sometimes be confused with hemorrhoidal bleeding.

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