Monodermal teratoma: Three case reports and review of literature

Figure 1 Ultrasound findings. A: Right ovarian echoless area with clear boundary; B: No color blood flow signal was found in the sac wall of the right ovarian anechoic region; C: Solid mass in the left adnexal area with clear boundary; D: Abundant color blood flow signals were seen around the solid mass in the left adnexal area.