Fig. 4From: Management of breech presentation with a large pelvic hydatid cyst in late pregnancy in Tibet: a case reporta Sonography at 37 weeks of gestation. It shows draining of the liquid of the cyst through the posterior fornix under the guidance of ultrasound (arrow). b Sonography at 37 weeks of gestation. After draining of the liquid of the pelvic hydatid cyst through the posterior fornix under the guidance of ultrasound, the cyst disappeared (arrow)Back to article page