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Inflammatory bowel disease (IBD) is a group of inflammatory conditions of the colon and small intestine, with Crohn's disease and ulcerative colitis (UC) being the principal types. [3] Crohn's disease affects the small intestine and large intestine, as well as the mouth, esophagus, stomach and the anus, whereas UC primarily affects the colon ...
Crohn's disease is a chronic inflammatory bowel disease characterized by recurrent episodes of intestinal inflammation, primarily manifesting as diarrhea and abdominal pain. Unlike ulcerative colitis , inflammation can occur anywhere in the gastrointestinal tract, though it most frequently affects the ileum and colon , involving all layers of ...
Other rarer diseases affecting the small intestine include Curling's ulcer, blind loop syndrome, Milroy disease and Whipple's disease. Tumours of the small intestine include gastrointestinal stromal tumours, lipomas, hamartomas and carcinoid syndromes. [5]: 879–887 Diseases of the small intestine may present with symptoms such as diarrhoea ...
Refractory coeliac disease should not be confused with the persistence of symptoms despite gluten withdrawal [114] caused by transient conditions derived from the intestinal damage, [111] [112] [115] which generally revert or improve several months after starting a gluten-free diet, [116] [117] such as small intestinal bacterial overgrowth ...
An alternative theory suggests that the symptoms of the disease may be caused by toxic effects of the hydrogen sulfide on the cells lining the intestine. [ 65 ] Infection by Mycobacterium avium , subspecies paratuberculosis , has been proposed as the ultimate cause of both ulcerative colitis and Crohn's disease.
Crohn's disease – also known as regional enteritis, it can occur along any surface of the gastrointestinal tract. The most common location for Crohn's disease to manifest, with or without the involvement of the colon or other parts of the GI tract, is in the terminal ileum (the final segment of the small intestine). [5]
Gastroenterology (from the Greek gastḗr- "belly", -énteron "intestine", and -logía "study of") is the branch of medicine focused on the digestive system and its disorders. [1]
Shigellosis, known historically as dysentery, is an infection of the intestines caused by Shigella bacteria. [1] [3] Symptoms generally start one to two days after exposure and include diarrhea, fever, abdominal pain, and feeling the need to pass stools even when the bowels are empty. [1]