Snowstorm appearance in sonography is characteristic of
Sonographically, a complete mole appears as an echogenic uterine mass with numerous anechoic cystic spaces but without a fetus or amniotic sac. The appearance is often described as a "snowstorm"Paial mole has features that include a thickened, multicystic placenta along with a fetus or at least fetal tissueReference: William's Obstetrics; 25th edition, chapter 20; Gestational trophoblastic diseases
Complete molar pregnancy
Ectopic pregnancy
Incomplete aboion
Missed aboion
General obstetrics