Neoplasms of the canine urinary bladder.
Evaluation of histologic data obtained from 90 breeds of dogs with 3,837 neoplasms collected over 10 years (1961-1971) revealed 21 cases of urinary bladder neoplasmia in 14 breeds of dogs. There was no breed predispostion. The mean age of dogs with urinary bladder neoplasia was 9.5 years; 6 were males, 13 were females, and 2 were spayed females.