Gastrointestinal Hemorrhages

Posted by e-Medical PPT Thursday, June 24, 2010
The many causes of gastrointestinal hemorrhages are classified into upper or lower, depending on their location in the GI tract.
Upper gastrointestinal bleeding: Upper GI bleeding originates in the first part of the GI tract-the esophagus, stomach, or duodenum.Bleeding can come from ingestion of caustic poisons or stomach cancer. Most often, upper GI bleeding is caused by one of the following:Peptic ulcers,Gastritis,Esophageal varices and Mallory-Weiss tears.
Lower gastrointestinal bleeding: Lower GI bleeding originates in the portions of the GI tract farther down the digestive system-the segment of the small intestine farther from the stomach, large intestine, rectum, and anus. Diverticular disease, angiodysplasia, polyps, hemorrhoids, and anal fissures most commonly cause the bleeding. Blood in the stool can result from cancers, inflammatory bowel disease, and infectious diarrhea.

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