Urothelial carcinoma associated with a long‐term indwelling cystostomy component of a subcutaneous ureteral bypass device in a domestic shorthair cat

• DOI: 10.1111/jvim.17183
• Publication Date: 2024-08-29T01:29:55Z
• Authors: Samantha Lackeyra...; Erin Gibson; Jennifer Reetz; Taylor Chan; Charles‐Antoine A...; Dana L. Clarke
• Keywords: Cystostomy; Suprapubic cystostomy; Urinary diversion

Abstract Urothelial carcinoma (UC) occurs uncommonly in cats and no association has previously been observed with long‐term indwelling urinary implants. An 18‐year‐old male castrated domestic shorthair cat initially was presented for hematuria, leading to the diagnosis of a right‐sided ureterolithiasis severe pyelectasia on ultrasound examination, prompting subcutaneous ureteral bypass (SUB) device placement. The subsequently had intermittent hematuria dysuria, without ultrasonographic abnormality bladder or positive urine culture. Thirteen months later patient developed refractory lower tract signs, azotemia, proliferative mass region cystostomy tube component SUB evidence left obstruction. Cystostomy revision left‐sided placement were performed, as well partial cystectomy removal mass. Upon histopathology, diagnosed UC. To our knowledge, UC associated catheter not reported veterinary medicine.