title: Duplication of the inferior vena cava in a patient presenting for IVC filter placement.
abstract: Given the complex embryogenesis of the inferior vena cava (IVC), anatomic variations are commonly encountered. Duplication of the IVC occurs in up to 2.8% of the population. Though asymptomatic, a duplicated IVC has important clinical implications when attempting caval filtration. We present the case of a 45- year-old male with factor V leiden and protein C deficiency, who required cessation of warfarin anticoagulation in preparation for cervical laminectomy. The patient had a duplicated IVC and required placement of a caval filter in each IVC.
authors.affiliation: Department of Radiology, University of Chicago Medical Center, Chicago, Illinois, USA. dannycheng1@gmail.com
authors.forename: Danny
authors.initials: D
authors.lastname: Cheng
authors.forename: Steven M
authors.initials: SM
authors.lastname: Zangan
mesh_terms: D020016:Activated Protein C Resistance / Q000097:blood / Q000235:genetics / Q000628:therapy*; D000925:Anticoagulants / Q000008:administration & dosage; D005165:Factor V / Q000235:genetics; D006801:Humans; D007796:Laminectomy / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D010690:Phlebography / Q000379:methods; D020151:Protein C Deficiency / Q000097:blood / Q000150:complications / Q000628:therapy*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D016306:Vena Cava Filters; D014682:Vena Cava, Inferior / Q000002:abnormalities* / Q000000981:diagnostic imaging; D020246:Venous Thrombosis / Q000097:blood / Q000209:etiology / Q000517:prevention & control*; D014859:Warfarin / Q000008:administration & dosage
chemical_list: D000925:Anticoagulants; C095381:factor V Leiden; D014859:Warfarin; D005165:Factor V