Fig. 1

Ultrasound images of the ovaries. A Enlarged bilateral ovaries (left, 6.9 × 4.7 cm; right, 7.8 × 5.2 cm) with multiple anechoic areas were detected at five weeks of gestation. B At the 15 weeks of gestational age, the right ovary became solid, and multiple cysts involved the left ovary. At 24 weeks of gestational age, there was right (C) and left (D) ovarian enlargement, with hypoechoic area in the parenchyma and visible rich blood flow signals in the right ovary