A case of heterotopic pregnancy in a natural cycle: ultrasound diagnosis / 대한산부인과학회잡지

Heterotopic pregnancy in a natural cycle is rare case. This case occurs by one out of 30,000 cases of pregnancies. It is quite difficult to diagnose a heterotopic pregnancy clinically. But, recently, the availability of high-resolution sonography has improved the preoperative diagnosis rate. We present a case of spontaneous heterotopic pregnancy which was diagnosed pre-operatively by transvaginal ultrasound.