RESUMO
Endometriosis is defined as presence of functional endometrial glands and stroma beyond the normal confines of the uterus.1,2 Overall incidence is 10 to 20% of women in reproductive age, with peak incidence between 30 and 45 years.2 About 40% of women with infertility and 60% of those presenting with chronic pelvic pain have endometriosis.1 About 1% of women with endometriosis have urinary tract involvement, of which 84% involve the bladder. Urinary bladder endometriosis as a part of deep infiltrating pelvic endometriosis is known, but isolated bladder involvement is extremely rare. Patients present with vague and distressing urinary symptoms mimicking recurrent cystitis, hence strong clinical suspicion with prompt recognition of this entity is important to avoid prolonged morbidity.2 We report a case of isolated bladder endometriosis in a 28-year-old female with previous two cesarean sections. Open partial cystectomy was performed. Histopathology of the excised mass was diagnostic.