| 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) |
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| 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 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) |
| interstitial implantation | Implantation in which the blastocyst lies within the substance of the endometrium, as in humans and guinea pigs. (05 Mar 2000) |
| interstitial inflammation | Inflammation in which the inflammatory reaction occurs chiefly in the supportive fibrous connective tissue or stroma of an organ. (05 Mar 2000) |
| interstitial keratitis | An inflammation of the corneal stroma, often with neovascularization. (05 Mar 2000) |
| interstitial lamella | One of the lamellae of partially resorbed osteons occurring between newer, complete osteons. Synonym: ground lamella, intermediary system, intermediate lamella. (05 Mar 2000) |
| interstitial lung disease | <chest medicine> A group of lung disorders which result in scarring and dysfunction of the alveolus (air sac) in the lung. This results in poor oxygen diffusion from the air into the bloodstream. Widespread inflammation in the lung leads to fibrosis (scarring). Causes include chronic exposure to organic and inorganic dusts, fumes, vapors, radiation, medications and certain lung infections. Examples include asbestosis, silicosis, coal worker's pneumoconiosis and diffuse interstitial fibrosis. Smoking increases the risk in all cases. (27 Sep 1997) |
| interstitial lung disease with increased volume | <radiology> Cystic fibrosis (CF), eosinophilic granuloma (EG), lymphangioleiomyomatosis (LAM) (12 Dec 1998) |