Dog: Urinary bladder. Moderate to marked urinary bladder distension with bladder wall congestion.

Dog: Urinary tract. Moderate to marked urinary bladder distension with bladder wall congestion.

Dog: Urinary bladder. Moderate to marked urinary bladder distension with mucosal congestion and hemorrhage and intraluminal uroliths.

Dog: Urethra. Urethral obstruction with focal intraluminal urolith (obstructive urolithiasis).

Dog: Kidney and ureter. Hydronephrosis, mild, with intra-ureteral urolith.