An unusual case of accessory head of coracobrachialis muscle involving lateral cord of brachial plexus and its clinical significance

• Autorzy: Garbelotti Jr S.A. , Marques S.R. , Rocha P.R. , Pereira V.R. , Carvalho de Moraes L.O.
• Języki publikacji: EN

Abstrakty

EN

Knowledge of anatomical variations in the peripheral nervous system is key in the interpretation of unusual clinical signs or during physical or diagnostic imaging. This case study is a description of an anatomical variation between the coracobrachialis muscle and brachial plexus. In a routine dissection in the human anatomy laboratory, we were faced with an anatomical variation in the coracobrachialis muscle, observed in the upper right limb of a male cadaver. The coracobrachialis muscle had a common origin at the apex of the coracoid process and then divided into two heads. The lateral head followed its normal course until insertion into the middle third of the humerus, while the medial head involved the lateral cord of the brachial plexus before insertion into the intermuscular septum in the proximal third of the humerus. Atypical anatomical variations have clinical and surgical implications in procedures such as brachial plexus block and lateral cord compression. In these cases the result could be paralysis of the flexor musculature of the forearm and hypoesthesia of the forearm. (Folia Morphol 2017; 76, 4: 762–765)

• Wydawca: -
• Czasopismo: Folia Morphologica
• Rocznik: 2017
• Tom: 76
• Numer: 4
• Opis fizyczny: p.762-765,fig.

Twórcy

autor

Garbelotti Jr S.A.

• Disciplina de Anatomia Descritiva e Topografica, Departamento de Morfologia, Universidade Federal e Sao Paulo – Escola Paulista de Medicina, Sao Paulo, Brasil

autor

Marques S.R.

• Disciplina de Anatomia Descritiva e Topografica, Departamento de Morfologia, Universidade Federal e Sao Paulo – Escola Paulista de Medicina, Sao Paulo, Brasil

autor

Rocha P.R.

• Disciplina de Anatomia Descritiva e Topografica, Departamento de Morfologia, Universidade Federal e Sao Paulo – Escola Paulista de Medicina, Sao Paulo, Brasi

autor

Pereira V.R.

• Laboratorio de Anatomia Humana do Centro Universitario Sao Camilo, Sao Paulo, Brasil

autor

Carvalho de Moraes L.O.

• Disciplina de Anatomia Descritiva e Topografica, Departamento de Morfologia, Universidade Federal e Sao Paulo – Escola Paulista de Medicina, Sao Paulo, Brasil

Bibliografia

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Identyfikatory

DOI

10.5603/FM.a2017.0033