title: A case series of duplicated inferior vena cava: mind the side, or fail to trap!
abstract: OBJECTIVE
  The incidence of duplicated inferior vena cava (IVC) ranges between 0.2-3%.
  
  
  METHODS
  The objective of this report is to showcase malformation of inferior vena cava in a series of authors' own case studies. We also discuss the abnormal embryogenesis that results in this and the clinical management aspects of duplicated IVC.
  
  
  RESULTS
  Our findings suggest that it is important to recognize congenital anomaly such as duplicated IVC, especially prior to an invasive procedure.
authors.affiliation: Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University Beijing 100053, China.
authors.forename: Zhu
authors.initials: Z
authors.lastname: Tong
authors.affiliation: Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University Beijing 100053, China.
authors.forename: Yongquan
authors.initials: Y
authors.lastname: Gu
keywords: Inferior vena cava; case; embryogenesis