| interstitial pneumonitis | <chest medicine, pathology> A form if pneumonia which involves the interstitial tissues (connective tissue) of the lung. Causes are varied and include: infection with Pneumocystis carinii, radiation exposure, toxic inhalation, viral pneumonias and giant cell pneumonia. (27 Sep 1997) |
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| interstitial pregnancy | Development of the fertilised ovum in the uterine portion of the fallopian tube. Synonym: interstitial pregnancy, tubouterine pregnancy. (05 Mar 2000) |
| interstitial pulmonary fibrosis | <radiology> Idiopathic, idiopathic pulmonary fibrosis (AKA: usual interstitial pneumonitis), Hamman-Rich syndrome (rapidly progressive), drug-related, collagen-vascular disease, rheumatoid lung disease, scleroderma (12 Dec 1998) |
| interstitial radiation | Radiation therapy in which a radioactive material is placed directly into a tumour. (12 Dec 1998) |
| interstitial radiation therapy | <oncology> The implantation of radioactive seeds directly into a tumour. (10 Jan 1998) |
| interstitial therapy | Radiation therapy by means of radioactive seeds or needles implanted directly into the tissues to be irradiated. (05 Mar 2000) |
| interstitial tissue | <pathology> Rather general term for mesodermally derived tissue that may be more or less specialised. Cartilage and bone are specialised connective tissue, as is blood, but the term is probably better reserved for the less specialised tissue that is rich in extracellular matrix (collagen, proteoglycan etc.) and that surrounds other more highly ordered tissues and organs. (18 Nov 1997) |