Analysis of complete hydatidiform mole in one twin using traditional and molecular techniques.

A pregnant woman with hydatidiform mole in one twin was misdiagnosed as one of the twins with embryonic arrest. She chose to terminate the pregnancy and developed distant lung metastasis. After chemotherapy, she eventually recovered. This article systematically analyzes the diagnosis and treatment of hydatidiform mole in one twin to increase the awareness and reduce misdiagnosis of the disease.