Fig. 1

The ultrasound and MRI images of the tumor. A and B, sonographic examination demonstrated there was a 25.0 × 15.0 × 13.7 cm cyst in the left adnexal area, and the cyst was found to have a 15.7 × 11.3 × 14.1 cm heterogeneous echogenicity, which was irregular cauliflower-shaped and had strong blood flow. p indicate placenta. C and D, Abdominal magnetic resonance imaging (MRI) revealed a 30 × 17.4 × 18.9 cm cystic and solid mass on the left side of the pelvic cavity, and the solid component was irregular-shaped and cauliflower-shaped appearance