Endometrial polyps associated with endometrial hyperplasia in an obese bonnet monkey (Macaca radiata): a case report

Background A 10‐year‐old, female bonnet monkey (Macaca radiata) showed abnormal menstrual cycle length with heavy menstrual bleeding for 6–8 days. Methods Uterine ultrasound and histological examinations of endometrium by endometrial biopsy. Results An ultrasound examination of the uterine cavity showed presence of an enlarged polypoid mass. Further endometrial histology confirmed the presence of simple endometrial hyperplasia. Conclusions We report for the first time that endometrial polyp is associated with endometrial hyperplasia in obese bonnet monkey.