| GADH | gastric alcohol dehydrogenase |
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| GAS | galactorrhea-amenorrhea syndrome; gastric acid secretion; gastrin; gastroenterology; general adaptat... |
| GBP | galactose-binding protein; gastric bypass; gated blood pool |
| GBS | gallbladder series; gastric bypass surgery; group B Streptococcus; general biopsychosocial screening... |
| GCA | gastric cancer area; giant cell arteritis |
| gastric juice | The liquid secretion of the stomach mucosa consisting of hydrochloric acid (gastric acid), pepsinogen, intrinsic factor, gastrin, mucus, and the bicarbonate ion (bicarbonates). (12 Dec 1998) |
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| gastric lavage | <procedure> A procedure used to empty the stomach of its contents. Performed using a flexible rubber tube that is passed through the mouth and advanced to the stomach. This procedure includes the instillation of a balanced salt solution into the stomach (via the tube) followed by suctioning the fluid out of the stomach. An effective procedure in the treatment of toxic ingestions. (27 Sep 1997) |
| gastric lymphatic follicles | Lymphoid tissue within the lamina propria which, especially in early life, collect in small masses similar to intestinal solitary lymphatic follicles. Synonym: folliculi lymphatici gastrici. (05 Mar 2000) |
| gastric mucosa | Surface epithelium in the stomach that invaginates into the lamina propria, forming gastric pits. Tubular glands, characteristic of each region of the stomach (cardiac, gastric, and pyloric), empty into the gastric pits. The gastric mucosa is made up of several different kinds of cells. (12 Dec 1998) |
| gastric narrowing | <radiology> Neoplastic, carcinoma (linitis plastica), lymphoma, metastases, inflammatory, caustic, radiotherapy, granulomatous disease: Crohn disease, TB, sarcoidosis, eosinophilic enteritis see: gastric outlet obstruction (12 Dec 1998) |
| gastric outlet obstruction | <paediatrics, surgery> A congenital disorder in which the pylorus is thickened causing obstruction of the gastric outlet (to the duodenum). More common in males, pyloric stenosis. Symptoms of projectile vomiting begin several weeks after birth. Incidence: approximately 1 in 4,000 live births. (27 Sep 1997) |
| gastric pit | One of the numerous small pits in the mucous membrane of the stomach that are the mouths of the gastric glands. Synonym: foveola gastrica. (05 Mar 2000) |
| gastric plexuses of autonomic system | The plexus's along the greater and lesser curvatures of the stomach derived from the coeliac plexus; also known as inferior and superior plexus. Synonym: plexus gastrici systematis autonomici. (05 Mar 2000) |
| gastric polyps | <radiology> Hyperplastic (most common), adenoma, hamartoma, Peutz-Jeghers syndrome, Cowden syndrome, inflammatory, Cronkhite-Canada syndrome, villous adenoma (12 Dec 1998) |
| gastric smear | A group of cytologic specimens containing material from the mouth (oral smear), oesophagus and stomach (gastric smear), duodenum (paraduodenal smear), and colon, obtained by specialised lavage techniques; used principally for the diagnosis of cancer of those areas. (05 Mar 2000) |
| gastric stapling | Partitioning of the stomach by rows of staples; used to treat morbid obesity. (05 Mar 2000) |
| gastric stump | That portion of the stomach remaining after gastric surgery, usually gastrectomy or gastroenterostomy for cancer of the stomach or peptic ulcer. It is a common site of cancer referred to as stump cancer or carcinoma of the gastric stump. (12 Dec 1998) |
| gastric surface of spleen | The surface of the spleen in contact with the stomach. Synonym: facies gastrica splenis. (05 Mar 2000) |
| gastric tetany | Tetany associated with a gastric disorder, especially with loss of HCl by vomiting. Synonym: tetania gastrica. (05 Mar 2000) |
| gastric ulcer | <gastroenterology> An ulcer in the mucosal lining of the stomach. Ulcer formation results from gastric inflammation that may be triggered by the use of alcohol, aspirin or non-steroidal anti-inflammatories agents. Symptoms include recurrent abdominal pains (may be relieved by antacids), nausea, vomiting, weight loss and fatigue. Complications include GI bleeding, obstruction, perforation and ulcer penetration into surrounding tissues. Treatment includes the avoidance of alcohol, smoking, aspirin, anti-inflammatories and caffeine. Medications such as antacids or H2 antagonists (for example cimetidine, ranitidine) or proton pump inhibitors (omeprazole) have been shown to be effective treatment. (27 Sep 1997) |