Diagnosis of twin to twin transfusion syndrome at 18 weeks of gestation.
D000293:Adolescent; D005260:Female; D005330:Fetofetal Transfusion / Q000175:diagnosis* / Q000473:pathology; D005865:Gestational Age; D006801:Humans; D006831:Polyhydramnios / Q000175:diagnosis*; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014430:Twins, Monozygotic; D014463:Ultrasonography; D001743:Urinary Bladder / Q000473:pathology