| laryngeal cancer | A malignant (cancerous) tumour of the larynx. Presentation includes a progressively hoarse voice, difficulty swallowing and weight loss. Risk factors include smoking and heavy alcohol consumption. (27 Sep 1997) |
|---|---|
| Li-Fraumeni cancer syndrome | <syndrome> Familial breast cancer in young women, with soft-tissue sarcomas in children and other cancers in close relatives. (05 Mar 2000) |
| liver cancer | <oncology, tumour> A tumour of the liver. most cancer involving the liver is spread (metastatic) from other areas (colon, breast or lung). See: hepatoma. (27 Sep 1997) |
| localised cancer | A cancer still confined to its site of origin. (09 Oct 1997) |
| lung cancer | A cancerous growth in lung tissue. Lung cancer may be metastatic from another source (colon) or may be primary (tumour is of lung cell origin). Classification is based on the type of cell the lung cancer originates from (adenocarcinoma, alveolar cell carcinoma, squamous cell carcinoma, large cell and small cell carcinomas). (27 Sep 1997) |
| acute reflex bone atrophy | Atrophy of bones, commonly of the carpal or tarsal bones, following a slight injury such as a sprain. See: causalgia, reflex sympathetic dystrophy. Synonym: acute reflex bone atrophy, posttraumatic osteoporosis, Sudeck's syndrome. Origin: L. English sweat (05 Mar 2000) |
| air-bone gap | The difference between the threshold for hearing acuity by bone conduction and by air conduction. (05 Mar 2000) |
| Albrecht's bone | A small bone between the basioccipital and basisphenoid. (05 Mar 2000) |
| allogeneic bone marrow transplant | <haematology, procedure> A bone marrow transplant using marrow collected from a matched healthy donor, usually a brother or sister. The risks associated with the transplant increase with age and 50 years of age is generally regarded as the upper limit. (13 Nov 1997) |
| alveolar bone | That portion of bone in either the maxilla or the mandible which surrounds and supports the teeth. (12 Dec 1998) |
| alveolar bone loss | The resorption of bone in the supporting structures of the maxilla or mandible as a result of periodontal disease. (12 Dec 1998) |
| alveolar supporting bone | alveolar process |
| amyloidosis: bone manifestations | <radiology> Joint pain without radiographic findings, osteoporosis, especially in axial skeleton, lytic lesions that destroy cortex and invade soft tissue, wrist, scaphoid and lunate lesions that may extend into the carpal tunnel, inducing the classic complaints of carpal tunnel syndrome amyloid arthropathy Differential diagnosis: pigmented villonodular synovitis, synovial chondromatosis, rheumatoid arthritis, TB (12 Dec 1998) |
| aneurysmal bone cyst | <radiology> ABC, 10 - 30 yrs, 75% before skeletal maturity, sites: long bones; also, flat bones Findings: metaphyseal if unfused, metaepiphyseal after fusion, lytic, expansile, thin, continuous rim, thin internal bony strands (12 Dec 1998) |
| ankle bone | 1. <anatomy> The astragalus. 2. <surgery> A variety of clubfoot (Talipes calcaneus). See the Note under Talipes. 1. A slope; the inclination of the face of a work. 2. <geology> A sloping heap of fragments of rock lying at the foot of a precipice. Origin: L, the ankle, the ankle bone. (26 Nov 1998) |