AdenoCA of Colon : Clinical Features
Clinical Features: Colorectal carcinoma is clinically silent in earlier stages. Tumors in proximal colon (cecum and right colon) rarely cause obstruction due to large caliber of bowel in those locations. Instead, they often present with fatigue and weakness due to iron deficiency anemia from chronic blood loss. Left-sided colon cancers can produce occult bleeding, altered bowel habits, left lower quadrant pain or cramping, and intestinal obstruction. The image shows a 4.0 cm polypoid tumor arising in the cecum. It has well-defined, rolled-out margins which are sharply demarcated from the normal bowel mucosa. The small bowel can be seen on the left side of the image.