| RAR | rapidly adapting receptor; rat insulin receptor; retinoic acid receptor; right arm reclining; right ... |
|---|---|
| RB | radiation burn; rating board; rebreathing; reticulate body; retinoblastoma; right bronchus; right bu... |
| RBA | relative binding affinity; rescue breathing apparatus; right basilar artery; right brachial artery; ... |
| RCA | red cell agglutination; relative chemotactic activity; renal cell carcinoma; right carotid artery; r... |
| RCC | radiological control center; rape crisis center; ratio of cost to charges; receptor-chemoeffector co... |
| fibrous dysplasia of bone | A disease of bone marked by thinning of the cortex and replacement of bone marrow by gritty fibrous tissue containing bony spicules, producing pain, disability, and gradually increasing deformity. Only one bone may be involved (fibrous dysplasia, monostotic) or several (fibrous dysplasia, polyostotic). (12 Dec 1998) |
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| fibrous dysplasia of jaws | <radiology> Hereditary form of polyostotic fibrous dysplasia, involves mandible (12 Dec 1998) |
| fibrous dysplasia, polyostotic | Fibrous dysplasia of bone affecting several or many bones. When associated with melanotic pigmentation of the skin and endocrine disorders, it is known as albright's syndrome. (12 Dec 1998) |
| fibrous goiter | A firm hyperplasia of the thyroid and its capsule. (05 Mar 2000) |
| fibrous hamartoma of infancy | A tumour appearing usually in the upper arm or shoulder in the first two years of life and consisting of cellular fibrous tissue infiltrating the subcutis. (05 Mar 2000) |
| fibrous histiocytoma | <tumour> A benign lung or bronchial lesion, often subpleural, sometimes multiple, which forms hyalinised connective tissue. Synonym: fibrous histiocytoma. (05 Mar 2000) |
| fibrous joint | A union of two bones by fibrous tissue such that there is no joint cavity and almost no motion possible; the types of fibrous joints are sutures, syndesmoses, and gomphoses. Synonym: articulatio fibrosa, immovable joint, junctura fibrosa, synarthrodia, synarthrodial joint. (05 Mar 2000) |
| fibrous lamina | Alternative name for the nuclear lamina, the region lying just inside the inner nuclear membrane. (18 Nov 1997) |
| fibrous layer | The outer dense connective tissue layer of the periosteum. (05 Mar 2000) |
| fibrous mediastinitis | Scarring of mediastinal structures of unknown origin or due to infection. (05 Mar 2000) |
| fibrous membrane | The outer fibrous part of the capsule of a synovial joint, which may in places be thickened to form capsular ligaments. Synonym: membrana fibrosa, stratum fibrosum, fibrous membrane. (05 Mar 2000) |
| fibrous pericarditis | Scarring, usually with adhesions, of all or most of the pericardium. (05 Mar 2000) |
| fibrous pericardium | See: pericardium. Synonym: pericardium fibrosum. (05 Mar 2000) |
| fibrous plaque | Thickened area of arterial intima with accumulation of smooth muscle cells and fibrous tissue (collagen etc.) produced by the fat laden smooth muscle cells. Below the thickening may be free extracellular lipid and debris that, if much necrosis is also present, is referred to as an atheroma. (18 Nov 1997) |
| fibrous pneumonia | A process affecting pulmonary tissue and leading to deposition of collagen, either interstitially or in alveolar sacs. (05 Mar 2000) |