Abstract: Paraovarian cysts are fluid-filled swellings that develop within the broad ligament of the uterus. When their diameter exceeds 15 cm, they are referred to as “giant” cysts. These cysts usually cause symptoms because of the pressure they exert on nearby pelvic organs or when complications arise. Although imaging modalities such as ultrasonography, CT, and MRI help in evaluation, the exact site of origin of very large cysts often becomes clear only during surgery. This report aims to discuss and present updated information regarding the diagnosis, histopathological features, and management of a giant paraovarian cyst in a 53-year-old postmenopausal woman.