Bladder tumors in dogs and cats

Bladder tumors in dogs and cats provide a diagnostic and therapeutic challe nge to veterinary clinicians. Because disease is often advanced by the time many dogs and cats with bladder tumors are presented for treatment and bec ause many such tumors occur at the trigone region of the bladder, therapeut ic outcome is poor in many cases. Surgery is ineffective for tumors located in the trigone, and radiation therapy is associated with high morbidity; t hus, chemotherapy remains the most common form of treatment for dogs and ca ts with bladder tumors. This article discusses techniques used to diagnose urinary bladder neoplasia and reviews the current status of chemotherapeuti c drugs used to treat bladder cancer.