[Partial paralysis of the right lumbar plexus caused by a traumatic hematoma of the ileo-psoas muscle].

The authors show a case of paralysis of right femoral nerve, subsequent to extrinsic compression due to traumatic hematoma of ileo-psoas muscle. What emerges from the revitwing of the international literature, as well as from the personal experience is both a complete nosographic framing and the necessity for an early surgical intervention.