| structural gene | A gene that codes for a product (e.g. An enzyme, structural protein, tRNA), as opposed to a gene that serves a regulatory role. (18 Nov 1997) |
|---|---|
| structural interface | In dentistry, a boundary between tooth and restorative material. (05 Mar 2000) |
| structural isomerism | Isomerism involving the same atoms in different arrangements; e.g., butyric acids, leucine and isoleucine, glucose and fructose. (05 Mar 2000) |
| structural isomers | <chemistry> Are organic compounds that have the same som formula, meaning the same number of carbons, hydrogens or other type ot atoms. They differ from each other in the way the atoms are connected. Examples are n-butane and 2-methylpropane or ethanol and dimethylether. (09 Jan 1998) |
| admixture lesion | <radiology> Cyanosis and increased pulmonary blood flow, transposition (TGV), truncus arteriosis, TAPVR, tricuspid atresia (sort of intracardiac TAPVR) (12 Dec 1998) |
| andersson lesion | <radiology> Discovertebral fracture, seen in ankylosing spondylitis (12 Dec 1998) |
| Baehr-Lohlein lesion | Focal embolic glomerulonephritis occurring in bacterial endocarditis. Synonym: Baehr-Lohlein lesion. (05 Mar 2000) |
| benign lymphoepithelial lesion | Benign tumour-like masses of lymphoid tissue in the parotid gland, containing scattered small, mainly solid islands of epithelial cells. Synonym: Godwin tumour. (05 Mar 2000) |
| Bracht-Wachter lesion | A focal collection of lymphocytes and mononuclear cells within the myocardium in bacterial endocarditis. (05 Mar 2000) |
| bright t1 lesion | <radiology> (short T1), fat (lipoma, dermoid), sub-acute haemorrhage (metHb), paramagnetic agent (Gd, ? posterior pituitary), proteinaceous fluid (colloid cyst) most abnormalities cause long T1 and T2 (dark/bright) see also: dark T2 lesion (12 Dec 1998) |
| bubbly bone lesion | <radiology> Fibrous dysplasia, enchondroma, giant cell tumour (GCT), non-ossifying fibroma, osteoblastoma, myeloma, aneurysmal bone cyst (ABC), angioma, simple (solitary, unicameral) bone cyst, hyperparathyroid cyst, infection (Brodie's abscess; coccidioidomycosis; echinococcus), chondromyxoid fibroma, chondroblastoma mnemonic: FEGNOMASHIC (!!) (12 Dec 1998) |
| radial sclerosing lesion | A variant of sclerosing adenosis of the breast with central scar formation and radiating hyperplastic ducts. Synonym: radial scar. (05 Mar 2000) |
| Mallory-Weiss lesion | Laceration of the gastric cardia, as seen in the Mallory-Weiss syndrome. Synonym: Mallory-Weiss tear. (05 Mar 2000) |
| gelatinous lesion | A small area of oedema in the arterial intima, possibly a precursor of a fibrous plaque. (18 Nov 1997) |
| Ghon's primary lesion | Calcification seen in pulmonary parenchyma (usually mid-lung area) and hilar nodes resulting from earlier, usually childhood, infection with tuberculosis. Synonym: Ghon's complex, Ghon's focus, Ghon's primary lesion. (05 Mar 2000) |