John R. Petersen, Author at Infectious Disease Advisor

John R. Petersen

All articles by John R. Petersen

Large Intestine, Neoplastic: Adenocarcinoma

At a Glance Most colon polyps and early stages of colon cancer are often asymptomatic until they are advanced and present with symptoms, such as gastrointestinal (GI) blood loss, which is the most common sign. Other clinical findings that may provide clues to the diagnosis include a positive fecal occult (hidden) blood test (FOBT), bright…

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