Journal of Veterinary Case Reports, 2023 (Hakemli Dergi)
This case report investigated a case of cystic endometrial hyperplasia and open cervix pyometra (CEH+P) in a 5-
year-old, unspayed, nulliparous tabby cat complaining of vaginal discharge, anorexia, and high fever. According to the
patient's owner's anamnesis, it was reported that the cat had no appetite, was stagnant, and had purulent discharge from
the vagina. On ultrasound examination, the cat was diagnosed with cystic endometrial hyperplasia. Because the recurrence
rate was high despite treatment of the disease, an ovariohysterectomy was performed with the owner's consent. After
surgery, samples were collected from the uterus under sterile conditions for microbiological examination. In the microbiological examination, Mannheimia haemolytica (M. haemolytica) was isolated and the conventional bacteriological
diagnosis was confirmed by molecular examination. In conclusion, M. haemolytica may be the etiologic cause of cases of
cystic endometrial hyperplasia and open cervix pyometra (OCP) in tabby cats.