Some details about ovarian cysts in general and the approach we take at SUGO can be found here. Ovarian cancer is rare, but a diagnosis is of the utmost importance so that therapy can be faciliated as soon as possible. Besides benign ovarian cysts, ovarian cysts can be borderline or cancerous, both of which are considered in the “cancer” umbrella. Borderline cysts are sometimes referred to as “tumors of low malignant potential” or “atypical proliferative tumors”. Borderline cysts usually need to be removed as they have a dangerous potential. Patients with borderline cysts could have fertility-preserving surgery if desired.