“…Synonymously, choriocarcinoma in situ has been used to describe neoplastic trophoblast proliferations that are restricted to the placenta without metastases ( Trask et al, 1994 ). Disease presentation can range from asymptomatic with incidental findings of IC on placental pathology to metastatic maternal and infantile disease ( Jiao et al, 2016 , Caldas et al, 2017 , Lele et al, 1999 , Kanehira et al, 2013 , Trask et al, 1994 , Medeiros et al, 2008 , Liu and Guo, 2006 , Christopherson et al, 1992 , Duleba et al, 1992 , Sauvestre, 2014 , Aonahata et al, 1998 , Jacques et al, 1998 , Lee and Cho, 2019 , Sebire et al, 2005 ). Most cases present with no evidence of disseminated disease and are monitored with serial beta human chorionic gonadotropin (hCG) levels ( Jiao et al, 2016 , Caldas et al, 2017 , Lele et al, 1999 , Jacques et al, 1998 ).…”