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1. Introduction Rectal cancer is a malignant tumor arising from the epithelial lining of the rectum, the terminal part of the large intestine. It accounts for a significant proportion of colorectal cancers and is a major cause of cancer-related morbidity and mortality worldwide. Early detection …
Introduction Sigmoidoscopy is a medical procedure used to examine the lower part of the large intestine, specifically the sigmoid colon and rectum. It is a type of endoscopy and is performed by a healthcare provider known as a gastroenterologist or colorectal surgeon. Sigmoidoscopy is a …
Introduction Colonoscopy is a medical procedure that involves the examination of the colon (large intestine) and the rectum using a long, flexible tube-like instrument called a colonoscope. This procedure is commonly performed by gastroenterologists and colorectal surgeons and is an important tool in diagnosing, monitoring, …