Heterotopic pregnancy: A case report.

The incidence of heterotopic or combined pregnancy has risen in recent years. A case of heterotopic pregnancy is reported here without any risk factors, e.g., ovulation induction or assisted reproduction. The patient may fit in with superfecundation hypothesis. The diagnosis was made by transvaginal sonography after left salpingectomy and continuation of persistent HCG titer. The etiology, incidence, diagnosis and management of this condition were reviewed.