Canine testicular tumors: An 11-year retrospective study of 358 cases in Moscow Region, Russia

Background and Aim: Canine testicular tumors are among the most common reproductive tract tumors in male dogs and have been studied in many countries. However, to the best of our knowledge, studies with a large sample size have not been conducted in Russia. This study aimed to provide the latest information on the prevalence of canine testicular tumors in the Veterinary Oncology Scientific Center for Small Animals "Biocontrol" in Moscow, Russia, in 2010-2020 and the characteristics of the affected canine population. Materials and Methods: A retrospective review of patients and histological reports was collected and analyzed from 358 dogs with 447 testicular tumors within 11 years. Results: The mean age of the affected dogs was 10.4 years, whereas that of dogs with Sertoli cell tumors was 9.4 years p=0.009. This study includes mixed-breed dogs (18.4%), Yorkshire Terriers (8.8%), Labrador Retrievers (7.9%), Golden Retrievers (5.0%), and Fox Terriers (3.4%). The most common tumors were interstitial cell tumors (n=227, 50.8%). In contrast, 107 (23.9%) seminomas, 80 (17.9%) Sertoli cell tumors, 19 (7.4%) mixed germ cell-sex cord-stromal tumors, and 26 (7.6%) testicular tumors developed from cryptorchid testes, which included 16 (61.5%) Sertoli cell tumors, 10 (38.5%) seminomas, and no interstitial cell tumors. Conclusion: This study provides baseline information on the prevalence of canine testicular tumors in the described population, including the median age of each tumor type and overrepresented dog breeds. We further found that the most common scrotal testicular tumor was interstitial cell tumor, whereas Sertoli cell tumor was the most common in cryptorchid testicles. © 2022 Veterinary World. All rights reserved.

Publisher
Veterinary World
Number of issue
2
Language
English
Pages
483-487
Status
Published
Volume
15
Year
2022
Organizations
  • 1 Veterinary Oncology Scientific Center, Veterinary Clinic "Biocontrol,", Moscow, Russian Federation
  • 2 Department of Veterinary Medicine, Peoples' Friendship University of Russia (RUDN University), Moscow, 117198, Russian Federation
  • 3 Department of General Practice, Medical Institute, Peoples' Friendship University of Russia (RUDN University), Moscow, 117198, Russian Federation
  • 4 Department of Technosphere Safety, Peoples' Friendship University of Russia (RUDN University), Moscow, 117198, Russian Federation
  • 5 LABOKLIN RUSSIA, Moscow, Russian Federation
Keywords
Cryptorchid testes; Interstitial cell tumors: Mixed germ cell-sex cord-stromal tumors; Seminomas; Sertoli cell tumors; Testicular tumors
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