Search results
Results From The WOW.Com Content Network
The lesion appears submucosal, is hypervascular and protrudes intraluminally. Upper GI bleeding led to endoscopy, finding an ulcerated mass. Non-enhanced CT image of a small GIST in the posterior stomach wall (arrow). The lesion appears subserosal. Incidental finding. Plain radiographs are not very helpful in the evaluation of GISTs. If an ...
Endoscopic submucosal dissection (ESD) is an advanced surgical procedure using endoscopy to remove gastrointestinal tumors that have not entered the muscle layer. ESD may be done in the esophagus, stomach or colon. Application of endoscopic resection (ER) to gastrointestinal (GI) neoplasms is limited to lesions with no risk of nodal metastasis.
The gastric folds (or gastric rugae) are coiled sections of tissue that exist in the mucosal and submucosal layers of the stomach. [1] They provide elasticity by allowing the stomach to expand when a bolus enters it. These folds stretch outward through the action of mechanoreceptors, which respond to the increase in pressure. [2]
The lesion borders are marked with a coagulator. Highly concentrated saline and epinephrine are injected (15–20 ml) into the submucosal layer to swell the area containing the lesion and elucidate the markings. The mucosa outside the demarcated border is excised using a high-frequency scalpel to the depth of the submucosal layer.
Endoscopic submucosal dissection is a similar technique pioneered in Japan, used to resect a large area of mucosa in one piece. [6] If the pathologic examination of the resected specimen shows incomplete resection or deep invasion by tumor, the patient would need a formal stomach resection.
The submucosa (or tela submucosa) is a thin layer of tissue in various organs of the gastrointestinal, respiratory, and genitourinary tracts. It is the layer of dense irregular connective tissue that supports the mucosa (mucous membrane) and joins it to the muscular layer, the bulk of overlying smooth muscle (fibers running circularly within layer of longitudinal muscle).
The stomach is an organ of the gastrointestinal tract that sits in the abdomen. [1] Tumors of the stomach are known as gastric tumors, and can be either benign or malignant (gastric cancer). These tumors arise from the cells of the gastric mucosa which lines the stomach. Typically, most gastric tumors are cancerous and not detected until a ...
This affects treatment and prognosis. The normal thickness of the small intestinal wall is 3–5 mm, [ 6 ] and 1–5 mm in the large intestine. [ 7 ] Focal, irregular and asymmetrical gastrointestinal wall thickening suggests a malignancy. [ 7 ]