cake kidney

kidney /kid·ney/ (kid´ne) either of the two organs in the lumbar region that filter the blood, excreting the end-products of body metabolism in the form of urine, and regulating the concentrations of hydrogen, sodium, potassium, phosphate, and other ions in the extracellular fluid.

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abdominal kidney  an ectopic kidney just above the iliac crest.

amyloid kidney  one with renal amyloidosis.

artificial kidney  an extracorporeal device through which blood may be circulated for removal of elements that normally are excreted in the urine; a hemodialyzer.

cake kidney  a solid, irregularly lobed organ of bizarre shape, formed by fusion of the two renal anlagen.

cicatricial kidney  a shriveled, irregular, and scarred kidney due to suppurative pyelonephritis.

fatty kidney  one with fatty degeneration.

flea-bitten kidney  one with scattered petechiae on its surface.

floating kidney  nephroptosis.

fused kidney  a single anomalous organ developed as a result of fusion of the renal anlagen.

head kidney  pronephros.

horseshoe kidney  an anomaly in which the right and left kidneys are linked at one end by tissue.

hypermobile kidney  nephroptosis.

lumbar kidney  an ectopic kidney found opposite the sacral promontory in the iliac fossa, anterior to the iliac vessels.

lump kidney  cake k.

medullary sponge kidney  a usually asymptomatic, congenital condition in which small cystic dilatations of the collecting tubules of the renal medulla give the kidney a spongy feeling and appearance.

middle kidney  mesonephros.

pelvic kidney  an ectopic kidney found opposite the sacrum and below the aortic bifurcation.

polycystic kidneys  see polycystic kidney disease, under disease.

primordial kidney  pronephros.

sigmoid kidney  an anomaly in which the two kidneys are fused in the form of a capital Greek letter sigma.

sponge kidney  medullary sponge k.

thoracic kidney  an ectopic kidney that protrudes above the diaphragm into the posterior mediastinum.

waxy kidney  amyloid k.

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cake kidney (kk)

n.

A solid irregularly shaped lobed mass, usually situated in the pelvis toward the midline, that is produced by congenital fusion of the embryonic kidneys.

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kidney

either of the two organs in the lumbar region that filter the blood, excreting the end-products of body metabolism in the form of urine, and regulating the concentrations of hydrogen, sodium, potassium, phosphate and other ions in the extracellular fluid. Bean-shaped in the dog, cat, sheep and laboratory animals, lobed in the ox and some fetal animals such as the horse; irregularly lobed in birds. See also renal.

Dog kidney. By permission from Sack W, Wensing CJG, Dyce KM, Textbook of Veterinary Anatomy, Saunders, 2002

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artificial kidney

an extracorporeal device used as a substitute for nonfunctioning kidneys to remove endogenous metabolites from the blood, or as an emergency measure to remove exogenous poisons such as barbiturates. Called also hemodialyzer.

balloon kidney

meat hygiene term for cystic kidney.

basal lamina kidney

part of the filtration barrier of the kidney; is much thicker than most basal laminae.

cake kidney

a solid, irregularly lobed organ of bizarre shape, formed by fusion of the two renal anlagen. Called also lump kidney.

cicatricial kidney

a shriveled, irregular and scarred kidney due to suppurative pyelonephritis.

contracted kidney

an atrophic kidney that may be scarred and granular.

duplicate kidney

occurs in most species, without apparent increase in total renal mass.

enlarged kidney

may be due to polycystic kidney disease, hydronephrosis, pyelonephritis or congenital absence of one kidney resulting in hypertrophy of the other.

fatty kidney

one affected with fatty degeneration.

floating kidney

one that is freely movable, especially a human kidney (normally more firmly fixed than those in quadrupeds); called also hypermobile kidney. See also nephroptosis.

Bovine kidney. By permission from Sack W, Wensing CJG, Dyce KM, Textbook of Veterinary Anatomy, Saunders, 2002

fused kidney

a single anomalous organ developed as a result of fusion of the renal anlagen.

giant kidney worm

dioctophymerenale.

Goldblatt kidney

one with obstruction of its blood flow, resulting in renal hypertension. Produced experimentally in dogs.

horseshoe kidney

an anomalous organ resulting from fusion of the corresponding poles of the renal anlagen.

hypermobile kidney

one that is freely movable; called also floating kidney. See also nephroptosis.

lump kidney

cake kidney.

kidney meridian points

acupuncture points on the kidney meridian.

pelvic kidney

a kidney which has failed to ascend from its primordial site to the roof of the abdomen.

polycystic kidney disease

the most common congenital renal defect but most cases are sporadic and do not cause clinical illness because there is still sufficient renal mass to avoid uremia. In some cases the enlarged kidney is detected incidentally during a clinical examination. Rarely both kidneys are badly involved and the animal is dead at birth or dies soon afterwards. In some cases, there are signs of progressive renal failure, perhaps not until later in life. The defect is inherited in Persian cats, Cairn terriers and pigs. In Cairn terriers, cysts may also occur in the liver. See also feline perirenal cysts.

pulpy kidney disease

see Clostridium perfringensenterotoxemia.

kidney scan

radioimaging of a kidney by the use of a rectilinear scanner after the intravenous administration of a radiopaque material.

kidney stones

see urolithiasis.

supernumerary kidney

additional kidneys which develop as a consequence of two ureteric buds arising from one mesonephric duct so that two kidneys develop on the one side.

kidney transplant

commonly and successfully performed in experimental dogs. Increasingly used as a therapeutic procedure in clinical veterinary medicine for renal failure in cats and dogs.

turkey egg kidney

a speckled pattern caused by hemorrhagic glomeruli in diseases such as porcine erysipelas.

wandering kidney

floating or hypermobile kidney. See also nephroptosis.

waxy kidney

amyloid kidney.

white-spotted kidney

focal nonsuppurative interstitial nephritis, seen most commonly in calves.