A rare case of unilateral third head of sternocleidomastoid muscle/Un caso raro de una tercera cabeza unilateral del musculo esternocleidomastoideo

A rare case of unilateral third head of sternocleidomastoid muscle was noted during routine dissections for undergraduate medical students. The additional third head originated from the middle third of the clavicle and joined the normal two heads (sternal and clavicular) of the muscle in the middle...

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Bibliographic Details
Published in:International journal of morphology 2008-03, Vol.26 (1), p.99
Main Authors: Cherian, Saju Binu, Nayak, Satheesha
Format: Article
Language:Spanish
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Summary:A rare case of unilateral third head of sternocleidomastoid muscle was noted during routine dissections for undergraduate medical students. The additional third head originated from the middle third of the clavicle and joined the normal two heads (sternal and clavicular) of the muscle in the middle of the neck. The insertion and nerve supply of the muscle was normal. This case may be important for head and neck surgeons and for plastic surgeons doing muscle graft surgeries. KEY WORDS: Sternocleidomastoid muscle; Anatomical variation; Neck muscle. Un caso raro de una tercera cabeza unilateral del musculo esternocleidomastoideo se observo durante disecciones de rutina para los estudiantes de medicina de pregrado. La tercera cabeza adicional se origino en el tercio medio de la clavicula y se unio a las dos cabezas normales (esternal y clavicular) del musculo en el medio del cuello. La insercion y e inervacion del musculo fue normal. Este caso puede ser importante para los cirujanos de cabeza y cuello y para cirujanos plasticos que realizan cirugias de injerto muscular. PALABRAS CLAVE: Musculo esternocleidomastoideo; Variacion anatomica; Musculo del cuello.
ISSN:0717-9367