Heterotopic pregnancy with suspicion of superfetation after the intrauterine insemination cycle with ovulation induction using clomiphene citrate: A case report

Main Article Content

Ayumu Ito *
Takamasa Furukawa
Kentaro Nakaoka
Rika Hayashi
Tadashi Namihira
Sadanori Kasai
Kazuko Shimai
Kenji Takahashi
Masahito Nakakuma
(*) Corresponding Author:
Ayumu Ito | ayumu.itou@med.toho-u.ac.jp


At 22 days after intrauterine insemination with ovulation induction using clomiphene citrate at a previous hospital, a 30-year-old woman was admitted to our hospital owing to right lower quadrant abdominal pain. We diagnosed threatened abortion because of a gestational sac in the uterus on transvaginal ultrasonography. The next day, she complained of increased abdominal pain. Transvaginal ultrasonography revealed a gestational sac-like structure in the echo free space. She was diagnosed with heterotopic pregnancy due to a ruptured right tubal pregnancy, underwent laparoscopic right salpingectomy. Rupture of a gestational age of 5 weeks is extremely rare. If this was a case of a heterotopic pregnancy due to superfetation, it could be explained as this clinical course. When a pregnant woman develops abdominal pain, heterotopic pregnancies should not be excluded from the differential diagnosis, and the possibility of superfetation should be taken into consideration.

Downloads month by month


Download data is not yet available.

Article Details