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[Contribution of computed tomography to the exploration of congenital anomalies of the inferior vena cava. A report on five cases (author's transl)].

3 cases of abnormalities of the inferior vena cava are reported: one isolated left inferior vena cava, one duplication of the inferior vena cava with continuation by a left inferior hemi-azygos vein and a simple duplication of the post-renal inferior vena cava. Finally, 2 cases of retro-aortic left renal vein are described. These abnormalities may be fully studied by computed tomography which in certain cases makes it possible to avoid inferior cavography. The authors emphasize potential sources of error in interpretation and the value of being aware of the congenital malformation of the inferior vena cava.