| interstitial | <anatomy> Pertaining to or situated between parts or in the interspaces of a tissue. Origin: L. Interstitialis, inter = between, sistere = to set (18 Nov 1997) |
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| interstitial absorption | The removal of water or of substances in the interstitial fluid by the lymphatics. (05 Mar 2000) |
| interstitial cell | 1. <plant biology> Cells lying between but distinct from other cells in a tissue, a good example being the interstitial cells in Hydra that serve as stem cells. 2. <pathology> Cells lying between the testis tubules of vertebrates and that are responsible for the secretion of testosterone. (18 Nov 1997) |
| interstitial cell tumour of testis | <tumour> A small benign tumours of the testis that often produce testosterone, causing endocrine symptoms. Synonym: interstitial cell tumour of testis. (05 Mar 2000) |
| interstitial cell-stimulating hormone | <protein> Synonym for luteinising hormone. (18 Nov 1997) |
| interstitial cystitis | <pathology, urology> A chronic inflammatory condition of the bladder. The cause of interstitial cystitis is unknown, but occurs more commonly in females. Symptoms include difficulty urinating, pain on urination, urinary urgency and increased frequency of urination. (27 Sep 1997) |
| interstitial deletion | Deletion that does not involve the terminal parts of a chromosome. (05 Mar 2000) |
| interstitial disease | A disease occurring chiefly in the connective-tissue framework of an organ, the parenchyma suffering secondarily. (05 Mar 2000) |
| interstitial emphysema | Presence of air in the pulmonary tissues consequent upon rupture of the air cells, presence of air or gas in the connective tissue. (05 Mar 2000) |
| interstitial fluid | The fluid in spaces between the tissue cells, constituting about 16% of the weight of the body; closely similar in composition to lymph. Synonym: tissue fluid. (05 Mar 2000) |
| interstitial gastritis | Inflammation of the stomach involving the submucosa and muscle coats. (05 Mar 2000) |
| interstitial giant cell pneumonia | A rare complication of measles, with the postmortem finding of multinucleated giant cells lining alveoli. Synonym: Hecht's pneumonia, interstitial giant cell pneumonia. (05 Mar 2000) |
| interstitial gland | See: interstitial cells. (05 Mar 2000) |
| interstitial growth | Growth from a number of different centres within an area; in contrast with appositional growth, it can occur only when the materials involved are nonrigid. (05 Mar 2000) |
| interstitial hernia | A hernia in which the protrusion is between any two of the layers of the abdominal wall. (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) |
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| 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) |
| acute interstitial pneumonitis | 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) |
| chronic interstitial hypertrophic neuropathy | dejerine-Sottas disease |
| chronic interstitial salpingitis | Salpingitis in which fibrosis or mononuclear cell infiltration involves all layers of the fallopian or eustachian tube. Synonym: pachysalpingitis. (05 Mar 2000) |
| pneumonia, atypical interstitial, of cattle | A cattle disease of uncertain cause, probably an allergic reaction. (12 Dec 1998) |
| pneumonia, progressive interstitial, of sheep | Chronic respiratory disease caused by the visna-maedi virus. It was formerly believed to be identical with jaagsiekte (pulmonary adenomatosis, ovine) but is now recognised as a separate entity. (12 Dec 1998) |
| cystitis, interstitial | Disease that involves inflammation or irritation of the bladder wall. This inflammation can lead to scarring and stiffening of the bladder, and even ulcerations and bleeding. Diagnosis is based on symptoms, findings on cystoscopy and biopsy, and eliminating other treatable causes such as infection. Because doctors do not know what causes IC, treatments are aimed at relieving symptoms. most people are helped for variable periods of time by one or a combination of treatments. (12 Dec 1998) |
| hypertrophic interstitial neuropathy | Sensorimotor neuropathy characterised pathologically by collections of Schwann cell processes arranged concentrically around one or more nerve fibres. No genetic factors are known in its aetiology.For hereditary types, see hereditary hypertrophic neuropathy. (05 Mar 2000) |
| nephritis, interstitial | Primary or secondary disease of the renal interstitial tissue resulting from arterial, arteriolar, glomerular, or tubular disease which destroys individual nephrons, or from toxic involvement of interstitital cells and tubules due to systemic diseases such as gout, to drug exposure, or to mercury poisoning. Clinically it may be manifested primarily by loss of concentrating capacity, mineral wasting, proteinuria, and abnormal urine sediment. It may be seen in an acute form, particularly after specific bacterial infection, and may result in acute papillary necrosis. More commonly, the process is a chronic one with progressive renal atrophy and diminution of renal function. (12 Dec 1998) |
| desquamative interstitial pneumonia | Diffuse proliferation of alveolar epithelial cells, which desquamate into the air sacs and become filled with macrophages, accompanied by interstitial cellular infiltration and fibrosis; gradual onset of dyspnea and nonproductive cough occurs. (05 Mar 2000) |
| diffuse interstitial fibrosis | Progressive fibrous changes and scarring within the lung tissue, eventually interfering with normal gas exchange. (27 Sep 1997) |