Peer-reviewed veterinary case report
Bilateral ureteropelvic junction stenosis causing hydronephrosis and renal failure in an adult cat.
- Journal:
- Journal of feline medicine and surgery
- Year:
- 2012
- Authors:
- Foster, Jonathan D & Pinkerton, Marie E
- Affiliation:
- University of Wisconsin Veterinary Medical Teaching Hospital · United States
- Species:
- cat
Plain-English summary
A 3.5-year-old male neutered cat was taken to the vet because its kidneys were larger than normal, which was found during a routine check-up. Tests showed that the cat had significant swelling in the kidneys due to fluid buildup, along with stage 2 chronic kidney disease, which means the kidneys were not working properly but were not severely damaged yet. Ten months later, the cat became very tired and was found to have high levels of waste in its blood and was urinating very little. Despite medical treatment, the cat did not get better and was put to sleep. An examination after death showed that the cat had severe fluid buildup in the kidneys caused by a blockage in the ureter, which connects the kidneys to the bladder. This case is the first known instance of this specific blockage leading to kidney failure in a cat.
Abstract
A 3.5-year-old male neutered cat was presented for investigation of renomegaly appreciated during a routine physical examination. Marked renomegaly due to bilateral hydronephrosis was detected and further testing identified International Renal Interest Society stage 2, non-hypertensive, non-proteinuric chronic kidney disease. Ten months later the cat was evaluated for acute lethargy; severe azotemia with oliguria was documented. Medical therapy failed to result in clinical improvement and the cat was euthanased. Necropsy revealed bilateral marked hydronephrosis secondary to a tortuous proximal ureter consistent with proximal ureteropelvic junction stenosis. This is the first report of this disorder leading to progressive renal failure in a cat.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/22914571/