[Anomalies of division of the median nerve. A case. Review of the literature].

Abnormalities of division of the median nerve are exceptional. Several cases are found in the literature. The authors report a case of high bilateral division of the median nerve into two trunks of identical volume in a patient with Hansen's disease. The external trunk of the division supplies the thenar branch and the first commissure and the internal trunk supplies the second and third commissures.