Ectopic pregnancy is a condition in which the fetus develops abnormally, which can easily lead to the risk of miscarriage, stillbirth or endanger the life of the pregnant woman. Therefore, pregnant women need to be diagnosed with ectopic pregnancy as soon as possible to minimize the risk.

Recurrent and distant metastatic trophoblastic neoplasms are life-threatening. Therefore, it is necessary to diagnose trophoblastic neoplasms early, conduct treatment and follow-up after treatment, especially in invasive cases.