Diagnosis of renal agenesis in a beagle

Abstract

A case of right renal agenesis in a beagle, of interest because of the age of the dog at the time of diagnosis, is described. Physical, haematological, biochemical and urinary examinations, including measurement of endogenous creatinine clearance, were performed to assess renal function. Survey radiography, excretory urography, ultrasonography, computed tomography and nuclear magnetic resonance examinations were also used to confirm the absence of a kidney. The effect of kidney agenesis on renal function, evaluated on the basis of endogenous creatinine clearance, is discussed together with the benefits of the various imaging techniques to enable in vivo detection of renal abnormalities.

Urinary Tract

“…Absence of a kidney may result from agenesis 25,26 or previous nephrectomy. Failure to visualize one kidney on an excretory urogram indicates that the kidney is either absent or nonfunctional because of disease.…”

“…29,30,92,[94][95][96] Obstruction due to ureteral inflammation, blood clots, fibroepithelial polyps, calculi, extrinsic masses, ureteral fibrosis, or strictures is less common [97][98][99][100][101][102][103] (see C to I,[16][17][18][19][20][21][22][23][24][25]. In most cases, a bladder, urethral, or prostatic tumor involving the trigone is responsible for ureteral obstruction.…”

Renal Agenesis, Extramural Ectopic Ureter, and Nonfunctioning Urinary Bladder: A Difficult Clinical Case with an Innovative Approach

“…One of the most common congenital disorders of the upper urinary tract is ureteral ectopia [2], but renal dysplasia and agenesis are also relatively common [3][4][5]. Renal agenesis is the absence of one or both kidneys, and it can occur in different animal species [6][7][8][9]. The clinical signs of animals with renal agenesis may vary, and in some cases, the diagnosis may be made incidentally [10].…”