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Polypectomy
In medicine, a polypectomy is the removal of an abnormal growth of tissue called a polyp. Polypectomy can be performed by excision if the polyp is external (on the skin). See also * Colonic polypectomy * Non-lifting sign References {{surgery-stub Surgical procedures and techniques ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colonic Polypectomy
Colonic polypectomy is the removal of colorectal polyps in order to prevent them from turning cancerous. Gastrointestinal polyps can be removed endoscopically through colonoscopy or esophagogastroduodenoscopy, or surgically if the polyp is too large to be removed endoscopically. The method used to perform colonic polypectomies during colonoscopy depends on the size, shape and histological type of the polyp to be removed. Prior to performing polypectomy, polyps can be biopsied and examined histologically to determine the need to perform polypectomy. Evaluation Prior to resection, assessment of the polyp should include: polyp size, morphology, location, and accessibility. If there are features that suggest of cancer is present in the polyp, then either endoscopic submucosal dissection or surgery should be considered. If the polyp appears benign, but the risk of progression to cancer is negligible, then resection is not necessary. Larger, sessile polyps Large sessile polyps are m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ortenau Klinikum Darmspiegelung
The Ortenau, originally called Mortenau, is a historic region in the present-day German state of Baden-Württemberg. It is located on the right bank of the river Rhine, stretching from the Upper Rhine Plain to the foothill zone of the Black Forest. In the south, it borders on the Breisgau region, covering approximately the same area as the Ortenaukreis, a present-day administrative district with its centre at Offenburg. History The region was first mentioned as ''Mordunouva'' in a 763 deed. Then an early medieval county ('' Gau'') in the German stem duchy of Swabia, it received its name from a fortification near Ortenberg at the site of later Ortenberg Castle. In 1007, King Henry II enfeoffed the Bishops of Bamberg with the Ortenau estates. However, as the bishops were not able to control their remote Swabian lands themselves, they entrusted the rule to the local noble House of Zähringen. When the Zähringen dukes became extinct in 1218, quarrels broke out over their s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyp (medicine)
In anatomy, a polyp is an abnormal growth of tissue projecting from a mucous membrane. If it is attached to the surface by a narrow elongated stalk, it is said to be ''pedunculated''; if it is attached without a stalk, it is said to be ''sessile''. Polyps are commonly found in the colon, stomach, nose, ear, sinus(es), urinary bladder, and uterus. They may also occur elsewhere in the body where there are mucous membranes, including the cervix, vocal folds, and small intestine. Some polyps are tumors (neoplasms) and others are non-neoplastic, for example hyperplastic or dysplastic, which are benign. The neoplastic ones are usually benign, although some can be pre-malignant, or concurrent with a malignancy. The name is of ancient origin, in use in English from about 1400 for a nasal polyp, from Latin ''polypus'' through Greek. The animal of similar appearance called polyp is attested from 1742, although the word was earlier used for an octopus. Digestive polyps Rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Non-lifting Sign
The non-lifting sign is a finding on endoscopic examination that provides information on the suitability of large flat or sessile colorectal polyps for polypectomy by endoscopic mucosal resection (EMR). When fluid is injected under a polyp in preparation for endoscopic mucosal resection, some polyps do not "lift", indicating that the polyp is not separating from the submucosa. This makes polypectomy more technically difficult, and increases the risk of intestinal perforation if polypectomy is then attempted. It is also thought to be indicative of an early colorectal cancer that has invaded the submucosa significantly (sm3 – invasion down to the lower one-third of the submucosa), which would make surgical removal of the tumour preferable to allow complete removal of the cancer. Consequently, the non-lifting sign is generally considered to be a contraindication to performing endoscopic mucosal resection. __TOC__ History The non-lifting sign was first described in 1994 by Yoshiharu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
