| juvenile pelvis | A pelvis justo minor in which the bones are slender. (05 Mar 2000) |
|---|---|
| juvenile periodontitis | A degenerative periodontal disease of adolescents in which the periodontal destruction is out of proportion to the local irritating factors present on the adjacent teeth; inflammatory changes become superimposed, and bone loss, migration, and extrusion are observed. Two forms are recognised: 1) localised, in which the destruction is limited to the incisors and first molars; 2) generalised, involving all of the teeth. Synonym: periodontosis. (05 Mar 2000) |
| juvenile polyp | A smoothly rounded mucosal hamartoma of the large bowel, which may be multiple and cause rectal bleeding, especially in the first decade of life; it is not precancerous. Synonym: retention polyp. (05 Mar 2000) |
| juvenile polyposis coli | <radiology> Benign polyposis, inheritance uncertain, inflammatory or retention polyps: round, smooth, soft, mucin-filled, non-neoplastic, onset less than 10 yrs, polyps can prolapse through anus, associated with diarrhoea, protein loss see: polyposis syndromes, Cronkhite-Canada syndrome (12 Dec 1998) |
| juvenile retinoschisis | Retinoschisis occurring before 10 years of age and within the nerve-fibre layer, with frequent macular involvement; at first, the inner wall is a translucent veil-like membrane, but it becomes more dense and may render the retina white; autosomal recessive inheritance. There is a form of this condition in middle age that is X-linked and a rare autosomal dominant form. (05 Mar 2000) |
| juvenile rheumatoid arthritis | <pathology> Juvenile rheumatoid arthritis (JRA) is a form of rheumatoid arthritis in children that generally occurs prior to age 16. In contrast with the adult type, a fever is more pronounced. Cardiac involvement with pericarditis is more common. The arthritis favors one or more large joints and can interfere with normal bone growth. A positive rheumatoid factor is seen more uncommonly in this form of arthritis. Treatment is similar to the adult form of the disease. Up to 75% recover with treatment. Less than 10% are severely disabled by JRA. (27 Sep 1997) |
| juvenile rheumatoid arthritis, systemic-onset | 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 always surface and it may persists long after the systemic symptoms are gone. (12 Dec 1998) |
| juvenile spinal muscular atrophy | Slowly progressive proximal muscular weakness and wasting, beginning in childhood, caused by degeneration of motor neurons in the anterior horns of the spinal cord; onset usually between 2 and 17 years of age; usually autosomal recessive inheritance. Synonym: juvenile muscular atrophy, Kugelberg-Welander disease, Wohlfart-Kugelberg-Welander disease. (05 Mar 2000) |
| juvenile xanthogranuloma | Single or multiple reddish to yellow papules or nodules, usually found in young children, consisting of dermal infiltration by histiocytes and Touton giant cells, with increasing fibrosis. Synonym: nevoxanthoendothelioma. (05 Mar 2000) |
| juvia | <botany> A Brazilian name for the lofty myrtaceous tree (Bertholetia excelsa) which produces the large seeds known as Brazil nuts. Source: Websters Dictionary (01 Mar 1998) |
| juwansa | <botany> The camel's thorn. See Camel. Source: Websters Dictionary (01 Mar 1998) |
| juxta-articular nodules | A form of tertiary yaws that is characterised by the occurrence of nodule's on the arms and legs, situated usually near the joints. Synonym: juxta-articular nodules. (05 Mar 2000) |
| juxta-intestinal lymph nodes | The mesenteric lymph nodes located in immediate proximity to the jejunum or ileum. Synonym: nodi lymphatici juxta-intestinales. (05 Mar 2000) |
| juxta-oesophageal pulmonary lymph nodes | Several nodes of the posterior mediastinal group located along either side of the oesophagus; they receive lymph from both the oesophagus and the lungs. Synonym: nodi lymphatici juxta-oesophageales pulmonales. (05 Mar 2000) |
| juxtacortical chondroma | <tumour> A chondroma that develops from periosteum or periosteal connective tissue. Synonym: juxtacortical chondroma. (05 Mar 2000) |