title: Abdominal aortic aneurysm with inferior vena cava compression in association with deep venous thrombosis.
abstract: Deep venous thrombosis (DVT) of the lower extremity may be caused by external compression of the inferior vena cava (IVC) by a neighboring mass. A 55-year-old male presented with 8 months of intermittent left lower extremity swelling and signs of chronic venous stasis. Duplex ultrasound showed extensive DVT in the left leg. Subsequent imaging revealed a 4.2 cm infrarenal abdominal aortic aneurysm (AAA) compressing the IVC. In cases of chronic, unilateral DVT, work-up should include imaging for an anatomic cause. AAA is a rare cause of IVC compression with DVT, and is most commonly related to inflammatory AAAs. Previously reported cases of IVC compression by non-inflammatory AAAs have been secondary to large aneurysms (greater than 6 cm). This case illustrates that smaller AAAs lacking hemodynamically significant IVC obstruction may be found in association with DVT.
authors.affiliation: Department of Medicine, University of Tennessee College of Medicine, Chattanooga, Tennessee.
authors.forename: Ryan D
authors.initials: RD
authors.lastname: Moore
authors.forename: Elizabeth D
authors.initials: ED
authors.lastname: Rutter
authors.forename: Daniel R
authors.initials: DR
authors.lastname: Zapko
authors.forename: Victor O
authors.initials: VO
authors.lastname: Kolade
authors.forename: Shadi M
authors.initials: SM
authors.lastname: Ayyoub
mesh_terms: D017544:Aortic Aneurysm, Abdominal / Q000150:complications* / Q000473:pathology; D006801:Humans; D007866:Leg / Q000098:blood supply / Q000473:pathology; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D018616:Ultrasonography, Doppler, Duplex; D014682:Vena Cava, Inferior / Q000473:pathology*; D020246:Venous Thrombosis / Q000209:etiology* / Q000473:pathology* / Q000601:surgery