[Congenital agenesis of the inferior vena cava. Apropos of a case presenting as an ilio-femoral phlebitis. Contribution of echography and x-ray computed tomography].

The authors report the case of a young patient, 24 years old, hospitalized for a phlebitis of the right inferior member. The cause determined by venous angiography, echography and computed tomography, was a congenital agenesis of the inferior vena cava. This case allows to remember the embryology of the congenital anomalous inferior vena cava, which are rare and often unknown.