Benign mature ovarian teratoma (dermoid cyst) on ultrasound
Benign mature ovarian teratoma (dermoid cyst) on ultrasound
Transvaginal ultrasound of a mature teratoma in the ovary containing heterogeneous contents, which often shadow. It is round and well circumscribed. This image contains the "ovarian crescent" sign, which is a rim of normal-appearing ovary with follicles. These features suggest a benign cyst.