| thyroid colloid | The semifluid material that occupies the lumen of thyroid follicles; it contains thyroglobulin mainly. (05 Mar 2000) |
|---|---|
| emulsion colloid | A colloidal dispersion in which the dispersed particles are more or less liquid and exert a certain attraction on and absorb a certain quantity of the fluid in which they are suspended. Synonym: emulsion colloid, hydrophil colloid, hydrophilic colloid, lyophilic colloid. (05 Mar 2000) |
| unstable colloid | A colloid that is not again soluble in water after having been dried at ordinary temperature. Synonym: unstable colloid. (05 Mar 2000) |
| 198Au colloid | A radioactive isotope of gold emitting negative beta particles and gamma radiation, with a half-life of 2.7 days; formerly used for irradiation of closed serous cavities in the palliative treatment of ascites and pleural effusion due to metastatic malignancies, and for liver scans. Synonym: 198Au colloid, colloidal radioactive gold. (05 Mar 2000) |
| lyophilic colloid | A colloidal dispersion in which the dispersed particles are more or less liquid and exert a certain attraction on and absorb a certain quantity of the fluid in which they are suspended. Synonym: emulsion colloid, hydrophil colloid, hydrophilic colloid, lyophilic colloid. (05 Mar 2000) |
| lyophobic colloid | A colloidal solution in which the disperse particles are solid and lyophobe or hydrophobe, and are therefore sharply demarcated from the fluid in which they are suspended. Synonym: hydrophobic colloid, lyophobic colloid, suspension colloid. Origin: suspension + G. Eidos, resemblance (05 Mar 2000) |
| arthritis, juvenile rheumatoid | Rheumatoid arthritis of children occurring in three major subtypes defined by the symptoms present during the first six months following onset: systemic-onset (still's disease, juvenile-onset) polyarticular-onset, and pauciarticular-onset. Adult-onset cases of still's disease (still's disease, adult-onset) are also known. Only one subtype of juvenile rheumatoid arthritis (polyarticular-onset, rheumatoid factor-positive) clinically resembles adult rheumatoid arthritis and is considered its childhood equivalent. (12 Dec 1998) |
| benign juvenile melanoma | A benign, slightly pigmented or red superficial small skin tumour composed of spindle-shaped, epithelioid, and multinucleated cells that may appear atypical; most common in children, but also appearing in adults. Synonym: benign juvenile melanoma, epithelioid cell nevus, spindle cell nevus. (05 Mar 2000) |
| rheumatoid arthritis, systemic-onset juvenile | Also known as systemic-onset juvenile chronic arthritis. Still's disease presents with systemic (bodywide) illness including high intermittent fever, a salmon-coloured skin rash, swollen lymph glands, enlargement of the liver and spleen, and inflammation of the lungs (pleuritis) and around the heart (pericarditis). The arthritis may not be immediately apparent but it does appear and may persist after the systemic symptoms are gone. (12 Dec 1998) |
| periodontitis, juvenile | Localised periodontitis in teenagers and young adults. The onset is during the circumpubertal period but the diagnosis can be made beyond puberty. Lesions are confined predominantly to the first permanent molars or incisors and the distribution of lesions is usually symmetrical. The gingiva may appear normal. The lesions are highly active immediately following puberty but later destruction may slow or cease spontaneously. The disease is four times more prevalent in females than males and more prevalent in african americans than in other races or ethnic groups. (12 Dec 1998) |
| xanthogranuloma, juvenile | Benign disorder of infants and children characterised by multiple nodules with lipid-laden, non-langerhans-cell histiocytes. (12 Dec 1998) |
| systemic-onset juvenile chronic arthritis | See: Systemic-onset juvenile rheumatoid arthritis (still's disease). (12 Dec 1998) |
| systemic-onset juvenile rheumatoid arthritis | <rheumatology> A form of joint disease, arthritis, that presents with systemic upset. Clinical signs: high intermittent fever, a salmon-coloured skin rash, swollen lymph glands, enlargement of the liver and spleen, and inflammation of the lungs (pleuritis) and around the heart (pericarditis). The arthritis itself may not be immediately apparent but once apparent, it may persist after the systemic symptoms have resolved. Synonym: Still's disease. (03 Jul 1999) |
| juvenile | Pertaining to youth or childhood, young or immature. (18 Nov 1997) |
| juvenile absence epilepsy | A generalised epilepsy syndrome with onset around puberty, characterised by absence seizures and generalised tonic-clonic seizures. EEG often shows a greater than 3 Hz generalised spike wave pattern. (05 Mar 2000) |