title: Placental alterations secondary to intrauterine crowding.
abstract: The placenta can provide information that is helpful in determining the developmental pathogenesis of various structural defects. If a velamentous insertion of the umbilical cord or a short cord is noted, it is most likely that any associated structural defects in the newborn infant are deformational in nature secondary to the same factor that lead to the velamentous insertion or a short cord.
mesh_terms: D000650:Amnion; D000013:Congenital Abnormalities / Q000209:etiology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D010920:Placenta / Q000473:pathology*; D011247:Pregnancy; D014470:Umbilical Cord / Q000473:pathology*; D014599:Uterus / Q000473:pathology*