title: Two uncommon umbilical vessel anomalies in a fetus with trisomy 18.
authors.forename: W
authors.initials: W
authors.lastname: Sepulveda
authors.forename: M
authors.initials: M
authors.lastname: Reyes
authors.forename: L F
authors.initials: LF
authors.lastname: Gonçalves
mesh_terms: D000328:Adult; D002887:Chromosomes, Human, Pair 18; D017809:Fatal Outcome; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D014314:Trisomy; D016216:Ultrasonography, Prenatal; D014469:Umbilical Arteries / Q000002:abnormalities* / Q000000981:diagnostic imaging*