Infrahepatic interruption of the inferior vena cava (IVC) with azygos and hemiazygos continuation is a well known anomaly. An aneurysm of the IVC has to our knowledge never been reported. A patient is described in whom a postrenal segmental aneurysm of the IVC in association with infrahepatic interruption was evaluated by cavography, ultrasound, and computed tomography. The different modes of evaluation are discussed with emphasis on the embryogenesis of the IVC.
BellM. J.GutierrezJ. R.DuboisJ. J.: Aneurysm of the superior vena cava. Radiology95 (1970), 317.
2.
BreckenridgeW.KinlawW.: Azygos continuation of inferior vena cava. CT appearance. J. Comput. Assist. Tomogr.4 (1980), 392.
3.
ChermetJ.BigotJ. M.: Venography of the inferior vena cava and its branches. Chapter 3, p. 17. Springer-Verlag, Heidelberg, New York1980.
4.
ChuangV. P.MenaC. E.HoskinsP. A.: Congenital anomalies of the inferior vena cava. Review of embryogenesis and presentation of a simplified classification. Brit. J. Radiol.47 (1974), 206.
5.
ChurchillJ.WesbyG.IIIMarsanE.MoncadaR.ReynesC. J.LoveL.: Computed tomographic demonstration of anomalous inferior vena cava with azygos continuation. J. Comput. Assist. Tomogr.4 (1980), 398.
6.
CohenI.GoreM.VogelzangL.RochesterD.NeimanH. L.CramptonA. R.: Accessory hemiazygos continuation of left inferior vena cava. CT demonstration. J. Comput. Assist. Tomogr.8 (1984), 777.
7.
FarrJ. E.AndersonW. T.BrundageB. H.: Congenital aneurysm of the superior vena cava. Chest65 (1974), 566.
8.
FloydD.NelsonP.: Developmental interruption of the inferior vena cava with azygos and hemiazygos substitution. Radiology119 (1976), 55.
9.
GarrisJ. B.KangarlooH.SampleF.: Ultrasonic diagnosis of infrahepatic interruption of the inferior vena cava with azygos (hemiazygos) continuation. Radiology101 (1980), 179.
10.
GinaldiS.ChuangV. P.WallaceS.: Absence of hepatic segment of the inferior vena cava with azygos continuation. J. Comput. Assist. Tomogr.4 (1980), 112.
HellerR. M.DorstJ. P.JamesA. E.RoweR. D.: A useful sign in the recognition of azygos continuation of the inferior vena cava. Radiology101 (1971), 519.
13.
JasinskiR. W.YoungC. F.RubinJ. M.: Vena cava anomalies simulating adenopathy on computed tomography. J. Comput. Assist. Tomogr.5 (1981), 921.
14.
KumarD.KumarS.LounsburyD. E.: Anomalous inferior vena cava with idiopathic thrombosis simulating a mass. J. Comput. Assist. Tomogr.7 (1983), 223.
15.
LienH. H.von KroghJ.: Varicosity of the left renal ascending lumbar communicant vein. A pitfall in CT diagnosis. Radiology152 (1984), 484.
16.
MarksW. M.KorobkinM.CallaenP. W.KaiserJ. A.: CT diagnosis of tumor thrombosis of the renal vein and inferior vena cava. Amer. J. Roentgenol.131 (1978), 843.
17.
MayoJ.GrayR.St. LousE.GrosmanH.McLouhlinM.WiseD.: Anomalies of the inferior vena cava. Amer. J. Roentgenol.140 (1983), 339.
18.
MoncadaR. M.DemosT. S.MarsanR.ChurchillR. J.ReynesC.LoveL.: CT diagnosis of idiopathic aneurysms of the thoracic systemic veins. J. Comput. Assist. Tomogr.9 (1985), 305.
19.
SiegfriedM. S.RochesterD.BernsteinJ. R.MillerJ.-W.: Diagnosis of inferior vena cava anomalies by computerized tomography. J. Comput. Radiol.7 (1983), 119.
20.
UedaJ.HaraK.KobayashiY.OhueS.UehidaH.: Anomaly of the inferior vena cava observed by CT. J. Comput. Radiol.7 (1983), 154.
