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Cats are carnivores. The kidney is a vital organ with a variety of tasks. It plays an important role in maintaining the water, electrolyte and acid-base balance, in the excretion of toxic metabolic degradation products such as urea and in the recovery of valuable substances such as glucose, amino acids, peptides and minerals initially filtered out of the blood during ultrafiltration in the ...
Figure 18. Renal stone located at the pyeloureteric junction with accompanying hydronephrosis. [1] With US, larger stones (>5–7 mm) within the kidney, i.e., in the calyces, the pelvis and the pyeloureteric junction, can be differentiated, especially in the cases with accompanying hydronephrosis (Figure 18 and Figure 19).
Kidney stone disease, also known as renal calculus disease, nephrolithiasis or urolithiasis, is a crystallopathy where a solid piece of material (renal calculus) develops in the urinary tract. [2] Renal calculi typically form in the kidney and leave the body in the urine stream. [2] A small calculus may pass without causing symptoms. [2]
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The stones form in the urinary bladder in varying size and numbers secondary to infection, dietary influences, and genetics. Stones can form in any part of the urinary tract in dogs and cats, but unlike in humans, stones of the kidney are less common and do not often cause significant disease, although they can contribute to pyelonephritis and ...
Familial renal disease is an uncommon cause of kidney failure in dogs and cats. Most causes are breed-related (familial) and some are inherited. Some are congenital (present at birth). Renal dysplasia is a type of familial kidney disease characterized by abnormal cellular differentiation of kidney tissue.
The stonecat has a widespread distribution. Stonecats exist in the Great Lakes, the St. Lawrence River, drainages of Hudson Bay, and the Mississippi River basin.Stonecats can also be found from the Hudson River drainage of New York west to the Red River drainage of Hudson Bay.
The unipapillary kidney with a single renal pyramid is the simplest type of kidney in mammals, from which the more structurally complex kidneys are believed to have evolved. [17] [6] [18] Differences in kidney structure are the result of adaptations during evolution to variations in body mass and habitats (in particular, aridity) between species.