Bilateral ectopic ureters in a male dog with unilateral renal agenesis

Abstract

A 1-year-old neutered male mixed-breed dog was evaluated because of signs of urinary incontinence. Retrograde positive contrast urethrocystography and excretory urography with pneumocystography revealed bilateral intramural ectopic ureters and absence of the right kidney. During abdominal exploratory surgery, only the left kidney was located. The left intramural ectopic ureter was repaired by neoureterostomy (creation of a new opening for the ureter to enable urine to empty into the bladder). The right ectopic ureter was ligated at its entrance into the urinary bladder serosa. Results of excretory urography (performed immediately after surgery and repeated 8 weeks later) revealed successful correction of the left intramural ectopic ureter. Twelve weeks after surgery, the dog remained continent. To the authors' knowledge, there are few reports of ectopic ureters in male dogs; furthermore, the urinary tract abnormalities detected concurrently in this dog are also unusual.

Screening of ragdoll cats for kidney ‐disease: a retrospective evaluation

“…Further diagnostic tests to differentiate between these conditions were not performed. Both feline and canine unilateral renal agenesis are often associated with other developmental urogenital tract abnormalities or compensatory hypertrophy of the contralateral kidney (Greco , Agut and others , Taney and others , Morita and others , Chang and others ). The ultrasound reports of both cats, and abdominal radiographs and recheck ultrasonography of one cat did not reveal other abnormalities besides the absent right kidney.…”

Cystoscopic diagnosis and treatment of ectopic ureters in female dogs: 16 cases (2005–2008)

“…2,6,8,16,17 Performing abdominal ultrasonography prior to cystoscopy could help identify these abnormalities and suggest a need for further diagnostic testing, such as excretory urography. Dogs with ectopic ureters may have concurrent renal anomalies, including unilateral renal agenesis, hydronephrosis, or pyelonephritis.…”

Anatomical and pathological findings of renal aplasia and compensatory hypertrophy in a cat

“…In addition to the high prevalence of the aplasia in even organs like testicles or ovaries (8), especially in renal aplasia, malformations can be observed in the other urogenital organs which are functionally related with kidneys (5). Renal agenesis in dogs has been detected by many researchers and is often related with the congenital anomalies of the urinary organs such as the ureters or the urinary bladder (2,10,11). It has been reported that the renal agenesis in cats was detected together with the bilateral or unilateral uterine aplasias (4).…”