본 저자들은 임신 15 주에 생존 태아와 공존하고 있는 포상기태를 초음파로 산전진단하고 입 원관찰중 조기진통이 생겨 임신이 종결되었으며 병리조직검사와 세포유전학검사에서 정상태 아와 완전 포상기태로 판명된 1례를 경험하였기에 그 진단 및 치료에 대한 문헌고찰과 함께 보고하는 바이다.

Hydatidiform moles are generally separated into two clasifications. Complete hydatidiform moles are characterized by cystic swlling of all villi, often pronounced trophoblastic hyperplasia, lack of fetal parts, all 46 chromosomes of paternal origin(androgenesis), and a major risk for persistent trophoblastic tumor. Partial hydatidiform moles appear to be a milder version of complete moles with both normal and cystic villi, focal trophoblastic hyperplasia, a fetus or indications of previous fetal existence, 69 chromosomes with a maternal contribution, and a malignant potential less than described for complete moles. Hydatidiform mole with coexistent fetus is a very rare phenomenon, with an estimated incidence of 0.005 to 0.01 percent of all pregnancies. The rarity of live-born, surviving children may in part be due to termination of pregnancies, when molar parts are observed and without access to current advanced diagnostic procedures. Progress in techniques for first trimester prenatal diagnosis and improved surveillance of first trimester pregnancies through prenatal chromosomal analysis, ultrasound scan, maternal serum-hCG and serum- AFP screening has created complex situation, allowing confirmation of hydatidiform mole with coexisitng fetus. We recently experienced one case of unusual pregnancy with complete hydatidiform mole and coexisiting live fetus.