Dr. Reichle's current address is Animal Imaging, 1827 Pontius Avenue, West Los Angeles, CA 90025.
URETERAL FIBROEPITHELIAL POLYPS IN FOUR DOGS
Article first published online: 19 MAY 2005
Veterinary Radiology & Ultrasound
Volume 44, Issue 4, pages 433–437, July 2003
How to Cite
Reichle, J. K., Peterson, R. A., Mahaffey, M. B., Schelling, C. G. and Barthez, P. Y. (2003), URETERAL FIBROEPITHELIAL POLYPS IN FOUR DOGS. Veterinary Radiology & Ultrasound, 44: 433–437. doi: 10.1111/j.1740-8261.2003.tb00481.x
Presented at the American College of Veterinary Radiology Annual Scientific Meeting, Honolulu, HI, 2001.
- Issue published online: 19 MAY 2005
- Article first published online: 19 MAY 2005
- Received October 8, 2002; accepted for publication December 1, 2002.
Four dogs with ureteral fibroepithelial polyps, ranging from 9–12 years of age, are presented in this report. The patients presented with urinary incontinence, urinary tract infection, and/or polydypsia and pollakiuria. All dogs were intact at the time of diagnosis or for the majority of their lives and three were male. Various diagnostic procedures were performed including ultrasonography, contrast radiography, and nuclear scintigraphy. Not all procedures were performed in all patients. Findings included ureteral dilation proximal to the level of an intraluminal mass and ipsilateral hydronephrosis. Unilateral ureteronephrectomy was performed in three dogs with masses in the proximal ureter; ureteral resection and anastamosis was performed in the remaining patient with a mass located in the distal ureter. The same pathologist (RAP) reviewed all four lesions. The lesions appeared polypoid and were attached to the ureteral wall by a thin stalk. Histopathologically, they contained a superficial layer of well-differentiated transitional epithelial cells overlying a prominent fibrovascular stroma with a mild (three dogs) or marked (one dog) degree of lymphoplasmacytic inflammation. This disease may represent a benign neoplasm or a chronic inflammatory reaction and has a good prognosis with surgical removal. Its histopathological characteristics, higher incidence in males, and location more commonly within the upper third of the ureter is remarkably similar to the disease in humans.