SURGERY OF THE NEOPLASTIC CANINE URETHRA AND PROSTATE

摘要

Urethral tumors are rare in dogs. Transitional cell carcinoma (TCC) is the most common tumor of the canine urethra. Other malignant tumors include squamous cell carcinoma, adenocarcinoma, hemangiosarcoma, myxosarcoma, leiomyosarcoma, and lymphoma. Infemale dogs, non-neoplastic granulomatous urethritis is a differential diagnosis for urethral tumors. The clinical signs for dogs with urethral tumors include hematuria, pollakiuria, dysuria and urinary outflow obstruction. Diagnosis is typically made byphysical and rectal examination, traumatic catheterization and cytology, and imaging studies such as positive contrast urethrography, transurethral cystoscopy, and computed tomography. Clinical staging tests (three-view thoracic radiographs and abdominal ultrasonography or computed tomography) should be performed prior to definitive surgical management.