title: Aneurysmal dilatation of persistent vitelline vein with thrombus in a neonate.
abstract: The paired vitelline veins selectively involute and form a part of the portal vein during embryonic development. The presence of a persistent vitelline vein segment after birth is very rare and can be confused with anomalies of the portal and umbilical veins. We present sonographic, CT and MRI findings of aneurysmal dilatation of a persistent vitelline vein with thrombus in a neonate; this case was first misdiagnosed as an umbilical vein varix by prenatal US. MRI was used to identify the persistent vitelline vein segment and the remnant umbilical vein segment.
authors.affiliation: Department of Radiology, Anam Hospital, Korea University College of Medicine, #126-1, 5-Ka Anam-dong, Sungbukku, Seoul, 136-705, Republic of Korea.
authors.forename: Kun Woo
authors.initials: KW
authors.lastname: Kang
authors.forename: Deuk Jae
authors.initials: DJ
authors.lastname: Sung
authors.forename: Beom Jin
authors.initials: BJ
authors.lastname: Park
authors.forename: Min Ju
authors.initials: MJ
authors.lastname: Kim
authors.forename: Sung Bum
authors.initials: SB
authors.lastname: Cho
mesh_terms: D000783:Aneurysm / Q000151:congenital / Q000473:pathology*; D003952:Diagnostic Imaging; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D035583:Rare Diseases; D014680:Veins / Q000002:abnormalities* / Q000473:pathology*; D020246:Venous Thrombosis / Q000151:congenital / Q000473:pathology*; D014816:Vitelline Duct / Q000098:blood supply*