| kidney papillary necrosis | A form of acute kidney disease characterised by necrosis of the renal papillae. It is most frequently associated with diabetes mellitus because of the severe vascular disease present in the arteries and capillaries, particularly in the kidney. There is usually a large component of infection present, and in non-diabetics pyelonephritis and obstructive uropathy are the usual aetiologic agents. (12 Dec 1998) |
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| kidney pelvis | The expansion from the upper end of the ureter into which the calices of the kidney (kidney calices) open. (12 Dec 1998) |
| kidney plasminogen activator | <protein> A precursor to the enzyme urokinase that has blood clotting properties. (14 Nov 1997) |
| kidney profile | <investigation> A test which includes the measurement of the blood urea nitrogen (BUN) and the creatinine in a venous specimen. This test allows the physician to make a determination of how effectively the kidneys are functioning. (27 Sep 1997) |
| kidney stone | <nephrology, urology> The presence of calculi in the kidney or collecting system. The calculi are usually small (2-12mm) solid, crystalline, concretions that develop in the kidney and eventually pass through the genitourinary tract. Stones may be composed of calcium, phosphate or uric acid. (27 Sep 1997) |
| kidney transplantation | The transference of a kidney from one human or animal to another. (12 Dec 1998) |
| kidney tubular necrosis, acute | Acute kidney failure resulting from destruction of tubular epithelial cells. It is commonly attributed to exposure to toxic agents or renal ischemia following severe trauma. (12 Dec 1998) |
| kidney tubules, collecting | Straight tubes commencing in the radiate part of the kidney cortex where they receive the curved ends of the distal convoluted tubules. In the medulla the collecting tubules of each pyramid converge to join a central tube (duct of bellini) which opens on the summit of the papilla. (12 Dec 1998) |
| kidney tumour | <oncology> A benign or cancerous growth originating from kidney tissue (for example renal cell carcinoma, hypernephroma). (27 Sep 1997) |
| kidney, artificial | Device(s) which can substitute for normally functioning kidneys in cleansing the blood. (12 Dec 1998) |
| kidney, cystic | A kidney containing one or more cysts, including polycystic disease (kidney, polycystic), solitary cyst, multiple simple cysts, and retention cysts (associated with parenchymal scarring). (12 Dec 1998) |
| kidney, polycystic | Kidney whose tissue is displaced by a large number of tightly packed cysts so that cystic volume predominates over the solid parts to a considerable degree. (12 Dec 1998) |
| kidney, polycystic, autosomal dominant | A genetic disorder with autosomal dominant inheritance characterised by multiple cysts in both kidneys and progressive deterioration of renal function. It is usually caused by a mutant gene at the pkd1 locus on the short arm of chromosome 16, though mutations elsewhere in the genome can also cause the disease. The age of onset of symptoms varies widely. (12 Dec 1998) |
| kidney, polycystic, autosomal recessive | Rare genetic disorder with autosomal recessive inheritance characterised by multiple cysts in both kidneys and associated hepatic lesions. Serious manifestations are usually present at birth and there is high perinatal mortality. (12 Dec 1998) |
| kidney, sponge | Cystic disease of the medullary portion of the renal pyramids; asymptomatic unless complicated by infection, calculi, or obstruction; should be distinguished from congenital polycystic disease of the kidneys. (12 Dec 1998) |
| arteriosclerotic kidney | A kidney in which there is sclerosis of arterial vessels larger than arterioles. Such kidney's are usually not significantly reduced in size, but are likely to be paler than usual; the capsular surface may be marked by a few, possibly several, conical, relatively deep V-shaped scars that result from fibrosis and ischemic atrophy of the region supplied by the affected vessel. (05 Mar 2000) |
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| artery of anterior inferior segment of kidney | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti anterioris inferioris renis, artery of anterior {inferior segment of kidney}. (05 Mar 2000) |
| artery of anterior superior segment of kidney | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti anterioris superioris renis, artery of anterior {superior segment of kidney}. (05 Mar 2000) |
| artery of inferior segment of kidney | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti inferioris renis, artery of inferior segment of kidney. (05 Mar 2000) |
| artery of posterior segment of kidney | Origin, continuation of the posterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti posterioris renis, artery of posterior segment of kidney. (05 Mar 2000) |
| artery of superior segment of kidney | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti superioris renis, artery of superior segment of kidney. (05 Mar 2000) |
| artificial kidney | A machine for haemodialysis in acute or chronic renal failure; toxic substances in the blood are removed by exposure to dialyzing fluid across a semipermeable membrane. Synonym: artificial kidney. Ultrafiltration haemodialyzer, a haemodialyzer that uses fluid pressure differentials to bring about loss (usually) of protein-free fluid from the blood to the bath, as in certain edematous conditions. (05 Mar 2000) |
| ask-upmark kidney | <radiology> Segmental renal hypoplasia, gross findings: same as unifocal reflux nephropathy, (?) due to STERILE intrarenal reflux (12 Dec 1998) |
| atrophic kidney | A kidney that is diminished in size because of inadequate circulation and/or loss of nephrons. (05 Mar 2000) |
| cake kidney | A solid, irregularly lobed organ of bizarre shape, usually situated in the pelvis toward the midline, produced by fusion of the renal anlagen. (05 Mar 2000) |
| cancer, kidney | Cancer of the major organ responsible for the removal from the blood of the toxins of body metabolism the kidney. Childhood kidney cancer is different from the adult kidney cancer. The most common symptom of kidney cancer is blood in the urine. The diagnosis of kidney cancer is supported by findings of the medical history and examination, blood, urine, and X-ray tests, and confirmed with a biopsy. Kidney cancer is treated with surgery, embolization, radiation therapy, hormone therapy, biological therapy, or chemotherapy. (12 Dec 1998) |
| page kidney | <radiology> Renal compression most likely to be hypertension, mediated by renin-angiotensin system, aetiology: haematoma (posttraumatic) -- most common, cyst, tumour, on angio: stretching and splaying of intrarenal vessels (12 Dec 1998) |
| pancake kidney | A disk-shaped organ produced by fusion of both poles of the contralateral kidney anlagen. Synonym: disk kidney. (05 Mar 2000) |
| veins of kidney | The tributaries of the renal vein that drain the kidney; they parallel the arteries in the kidney and consist of interlobular, arcuate, and interlobar veins. Synonym: venae renis. (05 Mar 2000) |
| papillary foramina of kidney | Numerous minute openings, the apertures of the papillary ducts converging on the apical pole of each renal papilla. Synonym: foramina papillaria renis. (05 Mar 2000) |