A rare case of a complex of multiple congenital anomalies diagnosed using computed tomography in a male puppy
A 50-day-old male Maltese puppy was presented with difficulty in defaecation. Based on the clinical signs, and physical and radiographic examinations, including computed tomography, his condition was diagnosed as hypospadias, along with atresia ani and urethrorectal fistula. Hypospadias is a congenital malformation of the urethra that is relatively uncommon in dogs, while atresia ani is a rare congenital anomaly of the rectum and anus. An additional anatomic abnormality that can be associated with atresia ani is a fistula between the urogenital tract and rectum. After appropriate surgical procedures, the puppy recovered and defaecation via the anus was restored.
dog; canine; atresia ani; congenital malformation; hypospadias; urethrorectal fistula
Alam MR, Shin SH, Lee HB, Choi IH, Kim NS (2005): Hypospadias in three calves: a case report. Veterinarni Medicina 50, 506–509.
Goulden B., Bergman M. M., Wyburn R. S. (1973): Canine urethrorectal fistulae. Journal of Small Animal Practice, 14, 143-150 https://doi.org/10.1111/j.1748-5827.1973.tb06909.x
Hardy Robert M., Root Kustritz Margaret V. (2005): Veterinary Medicine Today Theriogenology Question of the Month. Journal of the American Veterinary Medical Association, 227, 887-888 https://doi.org/10.2460/javma.2005.227.887
Jurka P., Galanty M., Zielinska P., Max A., Sysa P. (2009): Hypospadias in six dogs. Veterinary Record, 164, 331-333 https://doi.org/10.1136/vr.164.11.331
Rahal SC, Vicente CS, Mortari AC, Mamprim MJ, Caporlli EH (2007): Rectovaginal fistula with anal atresia in 5 dogs. Canadian Veterinary Journal 48, 827–830.
Sherding R (1994): The Cat: Disease and Clinical Management. 2nd edn. Churchill Livingstone. 1353–1401.
Silverstone AM, Adams WM (2001): Radiographic diagnosis of a rectourethral fistula in a dog. Journal of the American Animal Hospital Association, 37, 573-576 https://doi.org/10.5326/15473317-37-6-573
Tobias T, Johnston S (2011): Veterinary Surgery: Small Animals. Elsevier Saunders. 1572 pp.
UDA AKIKO, KOJIMA YOSHIYUKI, HAYASHI YUTARO, MIZUNO KENTARO, ASAI NOBUAKI, KOHRI KENJIRO (2004): Morphological Features of External Genitalia in Hypospadiac Rat Model: 3-Dimensional Analysis. The Journal of Urology, 171, 1362-1366 https://doi.org/10.1097/01.ju.0000100140.42618.54
Veena P, Sankar P, Suresh RV, Kokila KS, Lakshmi ND (2011): Congenital absence of tail with atresia ani and hypospadias in a kid: a case report. Journal of Advanced Veterinary Research 1, 76–79.
Vianna Maria L., Tobias Karen M. (2005): Atresia Ani in the Dog: A Retrospective Study. Journal of the American Animal Hospital Association, 41, 317-322 https://doi.org/10.5326/0410317