Increasing the effectiveness of referral of ovarian masses from cancer unit to cancer center by using a higher referral value of the risk of malignancy index.

Hypothesis: Higher risk of malignancy index (RMI) with multidisciplinary approach will reduce the number of referrals of ovarian masses, thus reducing the stress for patients and workload at the cancer center.

Methods: Prospective observational study in which all patients with pelvic masses and an RMI lower than 450 were treated at the local hospital after discussion at multidisciplinary input. Patients with an RMI higher than 450 were referred to tertiary cancer centers.