| gastric carcinoma | <radiology> 3rd most common GI malignancy (after colorectal and pancreas), 95% adenocarcinoma (rarely squamous cell or adenoacanthoma), predisposing factors: pernicious anaemia (2X risk), chronic atrophic gastritis, adenomatous and villous polyp (7-27% are malignant), gastrojejunostomy types: polypoid / fungating, ulcerating / penetrating (70%), infiltrating / scirrous = linitis plastica, increase in fibrous tissue; aperistalsis; rigidity, superficial spreading carcinoma, confined to mucosa/submucosa; 95% 5-year survival, patch of nodularity; little loss of elasticity location: 60% lesser curvature, 30% GE junction, 10% greater curvature probability of malignancy of an ulcer: fundus 90%, greater curvature 70%, lesser curvature 10-15% (12 Dec 1998) |
|---|---|
| gastric cardia | The area of the stomach close to the oesophageal opening (cardiac orifice or cardia) which contains the cardiac glands. Synonym: pars cardiaca gastris, pars cardiaca ventriculi, cardia, gastric cardia. (05 Mar 2000) |
| gastric colic | Colicky pain associated with gastritis or peptic ulcer. (05 Mar 2000) |
| gastric crisis | An attack, usually lasting several days, with severe pain in the abdomen or around the waist, accompanied by nausea and vomiting and occasionally diarrhoea; occurs in tabetic neurosyphilis. (05 Mar 2000) |
| gastric diastole | A phase of relaxation of stomach peristalsis seen fluoroscopically or with the gastroscope. (05 Mar 2000) |
| gastric digestion | That part of digestion, chiefly of the proteins, carried on in the stomach by the enzymes of the gastric juice. Synonym: peptic digestion. (05 Mar 2000) |
| gastric emptying | <radiology> Solids linear (90-min half-time), liquids exponential (faster) (12 Dec 1998) |
| gastric feeding | Giving of nutriment directly into the stomach by means of a tube inserted via the nasopharynx and oesophagus or directly through the abdominal wall. (05 Mar 2000) |
| gastric filling defects | <radiology> Malignant tumours, carcinoma, lymphoma, leiomyosarcoma, metastases, benign, leiomyoma, lipoma, neurofibroma, polyp, hyperplastic, adenomatous, hamartomatous, others, bezoar, Nissen fundoplication, ectopic pancreas (12 Dec 1998) |
| gastric fistula | Abnormal passage communicating with the stomach. (12 Dec 1998) |
| gastric folds | Characteristic folds of the gastric mucosa, especially evident when the stomach is contracted. Synonym: plicae gastricae, gastric folds, ruga gastrica. (05 Mar 2000) |
| gastric follicles | Branched tubular glands lying in the mucosa of the fundus and body of the stomach; such glands contain parietal cells that secrete hydrochloric acid, zymogen cells that produce pepsin, and mucous cells. Synonym: glandulae gastricae, glandulae propriae, fundus glands, gastric follicles, Wasmann's glands. (05 Mar 2000) |
| gastric freezing | Formerly used treatment for peptic ulcer designed to reduce or eliminate the production of acid gastric juice by freezing the secretory cells with a supercooled fluid introduced into a balloon positioned in the stomach. (05 Mar 2000) |
| gastric fundus | The superior portion of the body of the stomach above the level of the cardiac notch. (12 Dec 1998) |
| gastric glands | Branched tubular glands lying in the mucosa of the fundus and body of the stomach; such glands contain parietal cells that secrete hydrochloric acid, zymogen cells that produce pepsin, and mucous cells. Synonym: glandulae gastricae, glandulae propriae, fundus glands, gastric follicles, Wasmann's glands. (05 Mar 2000) |