| 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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| acute interstitial pneumonitis | Usually considered a form of hypersensitivity pneumonitis. (05 Mar 2000) |
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| lymphocytic interstitial pneumonitis | A rare disease characterised by interstitial accumulation of lymphocytes in the lungs and late fibrosis; usually a result of a lymphoma, occasionally seen in AIDS, especially. In children. Sometimes seen as an autoimmune disorder. Synonym: lymphocytic interstitial pneumonia, lymphoid interstitial pneumonia. (05 Mar 2000) |
| lymphoid interstitial pneumonitis | <pathology> A form of pneumonia which is characterised by diffuse interstitial infiltrates and infiltration of lymphocytes into the lung tissue. (27 Sep 1997) |
| acute chemical pneumonitis | <chest medicine> Inflammation of the lungs which occurs secondary to exposure to a chemical, organic dust, fungus or mould. Chronic exposure can lead to chronic lung changes evident on chest X-ray. Symptoms include cough, fever, shortness of breath and wheezing. See: bird-handler's disease. (27 Sep 1997) |
| radiation pneumonitis | Injurious effects of radiotherapy on the lungs. There are three phases in the reaction of the lungs to radiation injury: an acute phase occurring 1 to 2 months after exposure, a subacute phase 2 to 9 months after exposure, and a chronic or fibrotic phase more than 9 months after exposure. In the acute phase there is vascular damage, congestion, oedema, and mononuclear cell infiltration; in the subacute phase the alveolar walls are infiltrated with mononuclear inflammatory cells and fibroblasts; in the chronic phase, alveolar fibrosis and capillary sclerosis take place. (cecil textbook of medicine, 19th ed, p2343) (12 Dec 1998) |
| pandora's pneumonitis | <radiology> Type of extrinsic allergic alveolitis, from forced air equipment (heating, humidifying, air conditioning systems), organism: thermophilic actinomycetes (12 Dec 1998) |
| pneumonitis | <pathology> Inflammation of the lung secondary to viral or bacterial infection. Common symptoms include a productive cough, fever, chills and shortness of breath. (27 Sep 1997) |
| hypersensitivity pneumonitis | <radiology> Aka: chronic extrinsic allergic alveolitis, pathology: proliferation of epithelial cells, elaboration of reticulum fibres, findings: interstitial reticulonodular pattern (basilar distribution), volume loss (cicatrization atelectasis) in upper lobes, pleural effusion (rare), lymph node enlargement may occur (12 Dec 1998) |
| feline pneumonitis | An infectious respiratory illness of domesticated cats caused by the bacterium Chlamydia psittaci. (05 Mar 2000) |
| uraemic pneumonitis | Perihilar oedema of the lung associated with renal failure and hypertension; the peripheral parts of the lung remain clear. Synonym: uraemic pneumonia, uraemic pneumonitis. (05 Mar 2000) |
| acute interstitial nephritis | <nephrology> A relatively uncommon condition which is characterised by inflammation of the renal tubules, glomeruli and surrounding tissue. Interstitial nephritis is usually be temporary and often associated with the use of a particular medication. Chronic and progressive forms do exist. Drugs that have been associated with interstitial nephritis include penicillins, ampicillin, sulpha drugs, non-steroidal anti-inflammatory agents, furosemide and thiazide diuretics. May result in mild kidney dysfunction or acute renal failure. Treatment may be with corticosteroids. Incidence: 1 in 25,000. (29 Dec 1997) |
| acute interstitial pneumonia | A severe and usually fatal form of pneumonia occurring primarily in infants usually considered a form of hypersensitivity pneumonitis. (05 Mar 2000) |
| apical interstitial lung disease | <radiology> A radiological diagnosis where fibrosis is seen in the apices (upper sections) of the lungs. Likely causes include: cystic fibrosis, ankylosing spondylitis, sarcoidosis, silicosis, eosinophlic granuloma, TB and fungus, particularly aspergillus infection. (25 Jun 1999) |
| basilar interstitial lung disease | <radiology> B bronchiectasis, A asbestosis, D drugs / DIP, L lymphangitic metastasis / LAM, A aspiration, S sarcoidosis, S scleroderma (12 Dec 1998) |
| chronic interstitial hepatitis | An obsolete term for cirrhosis of the liver. (05 Mar 2000) |