Two cases of infra renal vena cava leiomyosarcoma are reported. Their
locoregional extension resulted in a joint resection of the aorta and
the vena cava. The follow-up of the two cases is of respectively 34 mo
nths and 32 months. We think that large resections are necessary, due
to the microscopic characteristics of such tumors in order to try to i
mprove the prognosis.