There are several types of abnormal placental tissues, including:
- Hydatidiform Mole (Molar Pregnancy): This benign condition is characterized by the growth of abnormal trophoblastic tissue. It can be either complete or partial, depending on whether the abnormal tissue replaces all or part of the placenta. - Choriocarcinoma: A malignant form of trophoblastic disease, choriocarcinoma is a fast-growing cancer that can spread to other parts of the body. - Placental Site Trophoblastic Tumor (PSTT): A rare type of gestational trophoblastic disease that arises from intermediate trophoblastic cells at the placental implantation site.
