Secondary infection of arterial aneurysms being a constantly possible
complication, the bacteriological examination of peroperative specimen
s appears to be appropriate. Among responsible organisms, the presence
of Listeria monocytogenes is very rare since only 13 cases have been
reported in the literature. It is for this reason that it was felt to
be of interest to report a new, entirely similar case of femoral aneur
ysm.