Gestational trophoblastic neoplasia, Differential Diagnosis of GTA Placental site trophoblastic tumor (PSTT). This rare type of GTN is also made from trophoblast cells. It begins where the placenta and also the uterus meet. Although it grows slowly, this type of tumor can spread to the uterine muscles, blood vessels, and lymph nodes nearby, as well as the pelvis and lungs. The signs and gestational trophoblastic disease symptoms of this type of tumor may not appear until after a normal gtd pregnancy or an abortion. An epithelioid tumor (ETT). This rare type of GTD is extremely rare. It can spread to the lungs if it does. It’s most common after a normal gtd pregnancy. Signs and symptoms can take time to manifest.



