Most<unk> s are asymptomatic. They are generally picked up in second trimester scan.<unk>  is seen as a hypo- or hyperechoic circumscribed mass that is distinct from the placenta at gray-scale US examination. Large lesions may contain fibrous septa. It is seen protruding into the amniotic cavity near the insertion of the cord. Doppler examination shows anechoic cystic areas, with pulsatile flow in spectral analysis. Some<unk> s may be solid masses, and may not be identifiable in gray-scale imaging. Therefore, the investigation of choice is Colour Doppler, which also distinguishes it from placental hematoma.
Chorioangioma
Chorangioma
Spider angioma
Lymphohemangioma
Lymphangioma
Tufted angioma
Hemangioma
Cavernous hemangioma