Bilateral Supernumerary Sternocleidomastoid Heads with Critical Narrowing of the Minor and Major Supraclavicular Fossae: Clinical and Surgical Implications

Anatomical variations of the sternocleidomastoid muscle are rare and concern its origin, insertion, and the number of heads. We report on a rare bilateral variant of the sternocleidomastoid muscle with aberrant and supernumerary muscular heads, observed in a cadaveric subject. On the right side of t...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Raikos,Athanasios, Paraskevas,George K, Triaridis,Stefanos, Kordali,Panagiota, Psillas,George, Brand-Saberi,Beate
Lenguaje:English
Publicado: Sociedad Chilena de Anatomía 2012
Materias:
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300027
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:scielo:S0717-95022012000300027
record_format dspace
spelling oai:scielo:S0717-950220120003000272013-02-20Bilateral Supernumerary Sternocleidomastoid Heads with Critical Narrowing of the Minor and Major Supraclavicular Fossae: Clinical and Surgical ImplicationsRaikos,AthanasiosParaskevas,George KTriaridis,StefanosKordali,PanagiotaPsillas,GeorgeBrand-Saberi,Beate Cleidocervical Cleido-occipital Sternocleidomastoid Sternomastoid Supraclavicular fossa Ultrasound Variant Anatomical variations of the sternocleidomastoid muscle are rare and concern its origin, insertion, and the number of heads. We report on a rare bilateral variant of the sternocleidomastoid muscle with aberrant and supernumerary muscular heads, observed in a cadaveric subject. On the right side of the neck, a typical sternomastoid head of the sternocleidomastoid muscle, and three aberrant clavicular heads of variable thickness, origin, and termination were noticed. On the left side, two sternomastoid heads were present; the medial one was of typical pattern, while the lateral was supernumerary. The cleidomastoid portion of the left sternocleidomastoid muscle was fused with the double sternomastoid segment. A strap-like muscle originating from the middle third of the clavicle and inserting onto the transverse process of the C3 vertebra was noticed. This is known as the cleidocervical muscle. On the right side of the neck, the posterior cervical triangle was diminished, the minor supraclavicular fossa was considerably narrow, whereas on the left, it was diminished in addition to a bilateral shortening of the major supraclavicular fossa minimizing space needed for potential surgical access. These findings are of prominent significance for anesthetists in ultrasound guided needle positioning in brachial plexus block, as well as in subclavian or external jugular vein catheterization, and in surgical interventions involving structures lying under the sternocleidomastoid muscle.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.30 n.3 20122012-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300027en10.4067/S0717-95022012000300027
institution Scielo Chile
collection Scielo Chile
language English
topic Cleidocervical
Cleido-occipital
Sternocleidomastoid
Sternomastoid
Supraclavicular fossa
Ultrasound
Variant
spellingShingle Cleidocervical
Cleido-occipital
Sternocleidomastoid
Sternomastoid
Supraclavicular fossa
Ultrasound
Variant
Raikos,Athanasios
Paraskevas,George K
Triaridis,Stefanos
Kordali,Panagiota
Psillas,George
Brand-Saberi,Beate
Bilateral Supernumerary Sternocleidomastoid Heads with Critical Narrowing of the Minor and Major Supraclavicular Fossae: Clinical and Surgical Implications
description Anatomical variations of the sternocleidomastoid muscle are rare and concern its origin, insertion, and the number of heads. We report on a rare bilateral variant of the sternocleidomastoid muscle with aberrant and supernumerary muscular heads, observed in a cadaveric subject. On the right side of the neck, a typical sternomastoid head of the sternocleidomastoid muscle, and three aberrant clavicular heads of variable thickness, origin, and termination were noticed. On the left side, two sternomastoid heads were present; the medial one was of typical pattern, while the lateral was supernumerary. The cleidomastoid portion of the left sternocleidomastoid muscle was fused with the double sternomastoid segment. A strap-like muscle originating from the middle third of the clavicle and inserting onto the transverse process of the C3 vertebra was noticed. This is known as the cleidocervical muscle. On the right side of the neck, the posterior cervical triangle was diminished, the minor supraclavicular fossa was considerably narrow, whereas on the left, it was diminished in addition to a bilateral shortening of the major supraclavicular fossa minimizing space needed for potential surgical access. These findings are of prominent significance for anesthetists in ultrasound guided needle positioning in brachial plexus block, as well as in subclavian or external jugular vein catheterization, and in surgical interventions involving structures lying under the sternocleidomastoid muscle.
author Raikos,Athanasios
Paraskevas,George K
Triaridis,Stefanos
Kordali,Panagiota
Psillas,George
Brand-Saberi,Beate
author_facet Raikos,Athanasios
Paraskevas,George K
Triaridis,Stefanos
Kordali,Panagiota
Psillas,George
Brand-Saberi,Beate
author_sort Raikos,Athanasios
title Bilateral Supernumerary Sternocleidomastoid Heads with Critical Narrowing of the Minor and Major Supraclavicular Fossae: Clinical and Surgical Implications
title_short Bilateral Supernumerary Sternocleidomastoid Heads with Critical Narrowing of the Minor and Major Supraclavicular Fossae: Clinical and Surgical Implications
title_full Bilateral Supernumerary Sternocleidomastoid Heads with Critical Narrowing of the Minor and Major Supraclavicular Fossae: Clinical and Surgical Implications
title_fullStr Bilateral Supernumerary Sternocleidomastoid Heads with Critical Narrowing of the Minor and Major Supraclavicular Fossae: Clinical and Surgical Implications
title_full_unstemmed Bilateral Supernumerary Sternocleidomastoid Heads with Critical Narrowing of the Minor and Major Supraclavicular Fossae: Clinical and Surgical Implications
title_sort bilateral supernumerary sternocleidomastoid heads with critical narrowing of the minor and major supraclavicular fossae: clinical and surgical implications
publisher Sociedad Chilena de Anatomía
publishDate 2012
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300027
work_keys_str_mv AT raikosathanasios bilateralsupernumerarysternocleidomastoidheadswithcriticalnarrowingoftheminorandmajorsupraclavicularfossaeclinicalandsurgicalimplications
AT paraskevasgeorgek bilateralsupernumerarysternocleidomastoidheadswithcriticalnarrowingoftheminorandmajorsupraclavicularfossaeclinicalandsurgicalimplications
AT triaridisstefanos bilateralsupernumerarysternocleidomastoidheadswithcriticalnarrowingoftheminorandmajorsupraclavicularfossaeclinicalandsurgicalimplications
AT kordalipanagiota bilateralsupernumerarysternocleidomastoidheadswithcriticalnarrowingoftheminorandmajorsupraclavicularfossaeclinicalandsurgicalimplications
AT psillasgeorge bilateralsupernumerarysternocleidomastoidheadswithcriticalnarrowingoftheminorandmajorsupraclavicularfossaeclinicalandsurgicalimplications
AT brandsaberibeate bilateralsupernumerarysternocleidomastoidheadswithcriticalnarrowingoftheminorandmajorsupraclavicularfossaeclinicalandsurgicalimplications
_version_ 1718444791345184768