Prevalence of Types and Patterns of Gastrointestinal Polyps in Assiut University Hospitals ( Cross Sectional Study

Rövid összefoglaló (regiszter, angolul)

Gastrointestinal polyps (GIPs) are unusual growths of epithelial tissue projecting from the mucosa of gastrointestinal tract (GIT) and one of the most common pathologies affecting GIT . They are either proliferative or neoplastic mucosal lesions that are commonly seen in the colon and less commonly occur in the esophagus, stomach and small intestine. They may remain asymptomatic or present as bleeding, pain and obstruction due to mass effect. However, the most important risk with the gastrointestinal polyps is the development of malignancy in some of these polyps . Gastric polyps include hyperplastic, fundic gland polyps, inflammatory fibroid polyp, adenomas like pyloric gland adenoma, and oxyntic gland adenoma. Hyperplastic gastric polyps rarely undergo neoplastic progression (1.5-2.1%) but are associated with an increased risk of synchronous cancer occurring elsewhere in the gastric mucosa . Gastric adenomas are true neoplasms and precursors of gastric cancer. Adenomas larger than 20 mm in width and villous histology have a higher risk of neoplastic progression . The presence of gastric adenomas is strongly associated with synchronous or metachronous gastric adenocarcinoma . Polyps of the small bowel are rare compared to those of the colo-rectum, with adenomas being most common and having more preference for the distal duodenum, ampullary, and periampullary region Colonic Polyps may be classified according to their gross appearance (sessile or pedunculated), histopathological features (hyperplastic, adenoma, etc.), and behavior (benign or malignant). The biggest concern is their ability to progress into adenocarcinoma, through the adenoma to carcinoma sequence due to genetic mutation .

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