<prompt> At what size PLACENTOMEGALY is diagnosed on USG?25 mm30 mm35 mm40 mm  <response>: Placentomegaly - 40 mm Normal placenta Placentomegaly Size - 22 cm in diameter Thickness - 2.0 to 2.5 cm Weight - 470 g. Thickness 40 mm . Weight - 750 g. Placentomegaly is associated with: Fetal hydrops Maternal diabetes Chronic infections e.g. syphilis, cytomegalovirus, Maternal anemia 