Pathologies of bitches‘ uterus and ovary

Abstract

Pathologies of bitches‘ uterus and ovary are quite common. Therefore for research and practical purposes, an investigation of these pathologies was of crucial importance. The objectives of this research study were: to identify and analyze uterus and ovarian pathologies of bitches, using histopathological examination; and to perform statistical analysis of the data. Samples were collected from bitches during OHE at health care facilities and were investigated at the Pathology Center of the Veterinary Academy of the Lithuanian University of Health Sciences. In total, uterus of 63 bitches and 126 samples of their ovaries were examined. They were stained by hematoxylin and eosin. Histologically, uterus and ovarian pathologies were diagnosed in 32 dogs (50.8 %). Uterine pathology was identified in 30 (47.6 %), and ovarian pathology – in 13 bitches (20.6 %). The most common pathology in uterus were cystic endometrial hyperplasia (31.7 %) and pyometra (22.2 %). In ovaries cysts were diagnosed (15.9 %). It was found that uterine pathology usually develops at the age of 5-10 years (72.7 %) and in dogs that weigh more than 25 kg (75 %). And ovarian pathology develops in dogs that are older than 10 years (33.3 %), and in bitches that weigh 15-25 kg (40.0 %). Most often, uterine pathologies were found in mongreal (30.0 %), the golden retriever, German shepherd and rottweiler breed dogs (under 10,0 %), and in the ovaries of shar-pei breed and mongreal bitches, 30.8 and 15.3 % respectively. Pyometra and cystic endometrial hyperplasia (CEH) generally was found in mongreal and golden retriever bitches, and accounted for 21.4 % all pyometra and 25.0 and 15.0 % CEH cases. The average age of morbidity was 7 years and 3 months. Ovarian cysts were found most frequently in mongreal (40.0 %) and shar-pei breed bitches (20.0 %), and the average age of dogs with onset pathologies was 7 years and 8 months. No statistically significant relationship between the occurrence of these