| small-area analysis | A method of analyzing the variation in utilization of health care in small geographic or demographic areas. It often studies, for example, the usage rates for a given service or procedure in several small areas, documenting the variation among the areas. By comparing high- and low-use areas, the analysis attempts to determine whether there is a pattern to such use and to identify variables that are associated with and contribute to the variation. (12 Dec 1998) |
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| small arteries | Unnamed muscular artery's, usually with fewer than six or seven layers of muscle. (05 Mar 2000) |
| small bowel dilatation | <radiology> Mnemonic: SOS, sprue, obstruction / ileus, scleroderma (collagen-vascular disease) normal width: less than 3 cm (12 Dec 1998) |
| small bowel disease | <radiology> Main feature, nodules, dilatation, thick folds distribution, localised, generalised, includes stomach, proximal, terminal ileum (TI), mesentery (12 Dec 1998) |
| small bowel disease involving mesentery | <radiology> Lymphoma, metastasis, retractile mesenteritis (12 Dec 1998) |
| small bowel disease involving stomach | <radiology> Lymphoma, eosinophilic gastroenteritis, Zollinger-Ellison syndrome (12 Dec 1998) |
| small bowel disease involving terminal ileum | <radiology> Crohn's, TB, Yersinia (12 Dec 1998) |
| small bowel enema | Radiographic examination of the small intestine, by retrograde filling from the contrast-filled large bowel. (05 Mar 2000) |
| small bowel infiltration | <radiology> Whipple disease (proximal small bowel), small bowel lymphoma, amyloidosis, Waldenstrom macrogloblinaemia, sprue, eosinophilic gastroenteritis, abetalipoproteinaemia (increased fat droplets in mucosal cells) (12 Dec 1998) |
| small bowel lymphoma | <radiology> Patterns:, infiltrative dilatation, nodular multiple filling defects, polypoid may cause intussiception from leading point associated with Burkitt lymphoma, endoexoenteric fistulae (12 Dec 1998) |
| small bowel nodules | <radiology> Lymphoid hyperplasia, lymphoma, metastasis (12 Dec 1998) |
| small bowel obstruction | <radiology> Fibrous adhesions (75%), secondary to previous peritonitis or surgery, hernia, external, internal, neoplasm, inflammatory disease See also: adynamic ileus simulating mechanical obstruction, large bowel (colon) obstruction (12 Dec 1998) |
| small bowel series | Radiographic examination of the small intestine following the oral administration of contrast medium, usually barium sulfate. Compare: small bowel enema. (05 Mar 2000) |
| small calorie | The quantity of energy required to raise the temperature of 1 g of water 1캜, or from 14.5캜 to 15.5캜 in the case of normal or standard calorie. Synonym: gram calorie. (05 Mar 2000) |
| small canal of chorda tympani | A canal leading from the facial canal to the tympanic cavity through which the chorda tympani nerve enters this cavity. Synonym: canaliculus chordae tympani, iter chordae posterius, small canal of chorda tympani. (05 Mar 2000) |