title: [Absence of the musculocutaneous nerve and its distribution from median nerve: About two cases and literature review].
abstract: Musculocutaneous nerve arises mostly from the lateral cord of brachial plexus. Nevertheless, variations have been reported and, among them: the total absence of musculocutaneous nerve (from 1.4 to 15%), the absence of its passage through the coracobrachial muscle, its variable level of penetration as measured from the tip of the coracoid process, and its communicating branches with the median nerve. We report two cases of unilateral musculocutaneous nerve absence in a 66-year-old male and a 95-year-old female cadavers, on the right and the left side, respectively. The nerve fibers normally coming from musculocutaneous nerve emerged from the median nerve. The knowledge of this anatomical variation is important specially when performing plexus bloc or Latarjet's procedure.
authors.affiliation: Service d'orthopédie et traumatologie, CHRU de Pointe-à-Pitre, route de Chauvel, 97159 Pointe-à-Pitre cedex, Guadeloupe. andre-pierre.uzel@wanadoo.fr, maxuzel
authors.forename: A-P
authors.initials: AP
authors.lastname: Uzel
authors.forename: A
authors.initials: A
authors.lastname: Bulla
authors.forename: G
authors.initials: G
authors.lastname: Steinmann
authors.forename: M
authors.initials: M
authors.lastname: LaurentJoye
authors.forename: P
authors.initials: P
authors.lastname: Caix
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002102:Cadaver; D005260:Female; D006801:Humans; D008297:Male; D008475:Median Nerve / Q000002:abnormalities*; D009138:Musculocutaneous Nerve / Q000002:abnormalities*