Monoamniotic twins. A case with vessel anomaly in one twin's umbilical cord.
D000328:Adult; D000650:Amnion; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins; D014469:Umbilical Arteries / Q000002:abnormalities*; D014470:Umbilical Cord / Q000033:anatomy & histology