Persistent ductus venosus Arantii.
D000293:Adolescent; D005260:Female; D006801:Humans; D008099:Liver / Q000098:blood supply / Q000196:embryology*; D008297:Male; D011247:Pregnancy; D014471:Umbilical Veins / Q000033:anatomy & histology*; D014680:Veins / Q000033:anatomy & histology; D014682:Vena Cava, Inferior / Q000033:anatomy & histology*