Background: Hydatidiform mole is part of the spectrum of gestational trophoblastic disease and may progress to gestational trophoblastic tumor (GTT). This progression is thought to be associated with dysregulation of cell proliferation, cell-cycle control, and apoptosis. Molecular biomarkers such as Vitamin D Receptor (VDR), Ki-67, p21, p27, p63, and Bcl-2 are involved in oncogenic signaling pa…