Brenner tumor is an ovarian tumor. These are usually benign, Few cases may be malignant. Brenner tumor mostly commonly occur after menopause. Due to their asymptomatic features, these tumors are found incidentally in 90% of the cases. Brenner tumor has good prognosis. Reference: https://rarediseases.info.nih.gov/diseases/9397/brenner-tumor-of-ovary/cases/23915 Image via: https://radiopaedia.org/cases/cervical-cancer-and-brenner-tumour-gross-pathology-1?lang=gb