OC03.06: Origin of acoustic shadowing as a discriminatory tool in determining the nature of neoplastic adnexal masses. Issue Volume 58:Issue S1(2021)Supplement (14th October 2021) - Sibal, M.; Bayyarapu, V.; Hosseini, F.; Kaur, L.; Gundabattula, S.; Veera, S.; Bai, D.; Panchal, S.