Peer-reviewed veterinary case report
Cat with severe blood in urine treated by guided kidney sclerotherapy
By Duh, Anna et al.·Published in Journal of veterinary internal medicine·2026·College of Veterinary Medicine, United States·View original on PubMed →
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Original publication title: Percutaneous cystoscopically and fluoroscopically guided sclerotherapy for treatment of renal hematuria in a cat.
- Species:
- cat
Plain-English summary
An 11-year-old male neutered domestic shorthair cat was brought in for severe blood in his urine, which was causing a blockage and making him very weak. The vet found bleeding from the bladder and used a special tube to deliver treatments directly to the affected area. After the procedure, the cat showed significant improvement, but unfortunately, the blood in his urine returned about 80 days later. A follow-up exam revealed new bladder nodules, which were diagnosed as cancer. The initial treatment helped, but further care will be needed for the cat's ongoing issues.
People also search for: cat blood in urine treatment · cat bladder cancer symptoms · sclerotherapy for cats
Abstract
An 11-year-old male neutered domestic shorthair cat was evaluated for severe hematuria causing urethral obstruction and marked anemia. Percutaneous cystoscopy identified hemorrhagic jets of urine issuing from the right ureterovesical junction (UVJ), raising concern for renal hematuria. Focal bleeding was observed from the bladder wall and suspected to be iatrogenic. Under cystoscopic and fluoroscopic guidance, a 2.5 Fr nephrostomy tube was advanced retrograde over a guidewire to mid-ureter and used to infuse silver nitrate and povidone iodine into the renal pelvis. A urethral catheter was used to perform sclerotherapy in the bladder. The cat showed substantial improvement in microscopic hematuria, but recurrence of hematuria was observed 80 days later. Repeat percutaneous cystoscopy and examination of the UVJs showed multiple jets of normal urine and newly noted bladder wall nodules, diagnosed as urothelial carcinoma. We describe successful renal sclerotherapy that could be refined and used for future cases of renal hematuria in cats.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/41742587/