[Involvement of the first 2 lumbar roots and paralysis of the abdominal-genital nerves. Clinical and electrical data].

We report two observations of ilio-hypogastric and ilio-inguinal palsy. In both cases, an inguino-scrotal pain occurs just after low back effort. Clinically, we observed an infero-lateral 'pseudo-eventration' and trochantero-inguino-scrotal hypoesthesia in the first patient and an inguino-scrotal hypoesthesia in the second. The EMG recording shows an isolated, severe or total peripheric denervation of the inferior part of lateral abdominal muscles, associated in one case with a partial denervation of the upper lumbar paravertebral muscles. Scan shows L2 radicular asymmetry in the first patient and L1 in the second. This observation is discussed in relation to the literature.