<prompt> Snowstorm appearance in Ultrasound is seen in:Hydatiform moleTwinsHydronephrosisDowns syndrome in fetus  <response>: Explanation:On ultrasound, the Hydatiform mole resembles a bunch of grapes cluster of grapes or honeycombed uterus or snow-storm appearance See table below Partial and Complete Hydatiform Mole PARTIAL MOLECOMPLETE MOLEFetus, Fetal vessels, PlacentaPresentAbsentKaryotype69 XXY triploid46 XXHydropic changesFocalMarkedMalignant potentialRare1 5-20Ultrasound featuresFocal cystic spaces in placentaFetus and placenta are seenTransverse diameter of uterus increasesSnowstorm appearance 