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Persistent right umbilical vein in trisomy 18: sonographic observation.
Author(s) -
De Catte L,
Osmanagaoglu K,
De Schrijver I
Publication year - 1998
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1998.17.12.775
Subject(s) - medicine , citation , university hospital , emergency department , family medicine , library science , nursing , computer science
Persistent right umbilical vein is a rare entity, with a prevalence of about 0.22%.1 The intrahepatic variant is observed most frequently, and 72% of the fetuses are normal.2,3 In a very limited number of cases, the persistent right umbilical vein terminates directly into the right atrium, without passage into the liver. The majority of fetuses with this variety have multiple congenital malformations.2 We report a case of persistent right umbilical vein draining directly into the right atrium in association with trisomy 18. Although particular sonographic markers related to Edwards syndrome were present in our case, we would recommend fetal karyotyping in all cases of persistent right umbilical vein. CASE REPORT