Risk maignancy indexing is based on RMI= CA125 level x USG x menopausal status Value of ca125 level x menopausal status (pre-1 or 3post) x usg 1:09:47 usg features 1. Solid component 2.multiocular 3.B/l 4. Mets 5. Ascites 1 or 3 (2 or more features) Score >250: risk of malignancy is very high