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dc.contributor.authorSilveira, Helson Freitas da-
dc.contributor.authorLucena, Jalles Dantas de-
dc.contributor.authorSobrinho, Osvaldo Pereira da Costa-
dc.contributor.authorPessoa, Roberta Silva-
dc.contributor.authorCerqueira, Gilberto Santos-
dc.contributor.authorOliveira, André de Sá Braga-
dc.contributor.authorRibeiro Júnior, Howard Lopes-
dc.identifier.citationSILVEIRA, Helson Freitas da et al. A rare case of absence of the lateral cutaneous nerve of forearm: case report. J Morphol Sci, v. 36, n. 2, p. 129–133, abr. 2019.pt_BR
dc.description.abstractIntroduction Variations in the formation and in the branching pattern of the brachial plexus are common. Numerous anastomotic variations between the musculocutaneous nerve (MCN) and the median nerve (MN) have been reported and could be implicated in a wide range of sensory and motor dysfunctions. Objective To report an uncommon case of an anastomotic variation between the MN and the MCN with a rare absence of the lateral cutaneous nerve of forearm (LCNF). Material and Methods A dissection of a male cadaver was performed at the Morphology Department of the Universidade Federal do Ceará, Fortaleza, state of Ceará, Brazil. The brachial plexus was exposed. Results It was observed that the MCN, after its origin in the lateral fasciculus of the brachial plexus, anastomoses with the MN in the middle third of the arm. It diverges from themost prevalent anatomical pattern, inwhich theMCNcontinues to passdistallybeneath the brachii biceps, originating the LCNF. In this case, the MCN does not emit its main terminal branch, the LCNF,which innervates the lateral portion of the skin of the forearm. In the present case, the innervation of the lateral portion of the skin of the forearmis provided by radial nerve branches. The reported case has practical implications, since the absence of the LCNF could cause hypoesthesia in the skin of the forearm. Conclusion Thus, the knowledge of the formation and of the branching pattern of the brachial plexus is clinically important for the correct clinical interpretation of the sensory and motor disorders of the upper limbs caused by peripheral nerve injuries, as well as for planning surgical procedures to correct upper limb traumas.pt_BR
dc.publisherJournal of Morphological Sciencespt_BR
dc.subjectExtremidade Superiorpt_BR
dc.subjectUpper Extremitypt_BR
dc.subjectMedian Nervept_BR
dc.subjectNervo Medianopt_BR
dc.subjectMusculocutaneous Nervept_BR
dc.subjectNervo Musculocutâneopt_BR
dc.subjectBrachial Plexuspt_BR
dc.subjectPlexo Braquialpt_BR
dc.titleA rare case of absence of the lateral cutaneous nerve of forearm: case reportpt_BR
dc.typeArtigo de Periódicopt_BR
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