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Gross lesions may include single or multiple uroliths in the bladder or more rarely the renal pelvis. Struvite uroliths are the most commonly reported type.
 
Gross lesions may include single or multiple uroliths in the bladder or more rarely the renal pelvis. Struvite uroliths are the most commonly reported type.
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'''Renal Cysts'''
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Renal cysts are a common finding in ferrets, although they rarely have any affect on renal function. Polycystic kidneys are found in ferrets but very rarely. Polycystic kidneys are enlarged and often can be felt on external palpation. Polycystic kidneys can result in kidney failure.
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Gross lesions may include single or multiple cysts present within the cortex of one or both kidneys. Cysts may range up to 1cm in diameter. Polycystic kidneys may be markedly enlarged and fill the posterior abdomen. Microscopic lesions can include thick walls of fibrous tissue surrounding cysts resulting in numerous atrophic glomeruli and tubules.
 
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