case_images: PMC11133594_01
case_images: Lateral abdominal radiographs obtained post-placement of an indwelling urinary catheter in a 5-year-old, spayed female, mixed breed dog that was evaluated for a 2-week history of lower urinary signs which progressed to complete urethral obstruction. There is an aggregation of numerous, small, irregularly marginated, mineral opacities at the neck of the bladder (arrow). These opacities do not shift between right (A) and left (B) lateral recumbency illustrating a lack of gravity dependence typically observed in urocystoliths.
case_images: fvets-11-1394052-g001.jpg
case_images: PMC11133594_01_fvets-11-1394052-g001.jpg
case_images: fig1
case_images: Radiopaque urocystoliths were located near the trigone of the bladder with an atypical, non-gravity-dependent distribution (Figure 1).
case_images: Postoperative images of a mass removed from the apex of the urinary bladder (A,B) alongside a urolith-laden surgical gauze removed from within the lumen of the urinary bladder (C) of the dog described in Figure 1. (A) A surgical gauze (arrow) is shown protruding from a defect on the mucosal surface (arrowhead) of the bladder mass. (B) An incision through the luminal defect along the long aspect of the bladder mass shows the encapsulated surgical gauze (arrow) within the gossypiboma. (C) The additional gauze within the bladder lumen was retrieved from the neck of the bladder and is shown to have numerous uroliths (arrows) adhered to its surface.
case_images: fvets-11-1394052-g002.jpg
case_images: PMC11133594_01_fvets-11-1394052-g002.jpg
case_images: fig2
case_images: When viewed from the lumen of the bladder, at the junction of the mass and the bladder, an opening was seen in the mass and a 4x4 surgical gauze was present inside the mass (Figure 2).