What is the characteristic appearance of gestational trophoblastic disease (GTD) on ultrasound?

Choice A rationaleThickening of the uterine lining is not characteristic of gestational trophoblastic disease (GTD). Instead, GTD involves abnormal growth of trophoblast cells, which form part of the placenta, leading to its distinct appearance.Choice B rationaleEnlargement of the fallopian tubes is not associated with GTD. GTD involves abnormal placental development rather than tubal changes. Ultrasound imaging reveals characteristic findings in the placenta.Choice C rationaleGTD's hallmark ultrasound finding is grape-like clusters in the placenta, indicative of molar pregnancy. This appearance results from the proliferation of abnormal trophoblast cells and hydropic villi.Choice D rationaleMultiple cysts in the ovaries are not characteristic of GTD. This description may relate to polycystic ovary syndrome (PCOS) but does not align with GTD’s specific ultrasound findings involving the placenta.