The sternalis muscle

Scott‐Conner, Carol E. H.; Al‐Jurf, Adel S.

doi:10.1002/ca.1096

Cited by 32 publications

(22 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Muscle fibres arise from the sheath of the rectus abdominis muscle or adjacent structures and terminate upon the pectoralis fascia, upper sternum, costal cartilages, the sternum, or the medial heads of the sternocleidomastoid muscle (7,8). The sternalis muscle can be either a few short fibres or a well-formed muscle, and may be unilateral or bilateral (7,9). This variant was seen unilaterally and in the right breast in our case.…”

Section: Discussionmentioning

confidence: 99%

The Musculus Sternalis: Ultrasonographic Verification of a Rare but Benign Mammographic Finding

Özbalcı¹,

Saracoglu²

2013

J Breasth Health

View full text Add to dashboard Cite

Screening mammography requires high-quality images and experienced radiologists. An improved technique with a systematic approach to patient positioning enables visualization of the deep parts of the breast. The sternalis muscle is occasionally observed in mammograms as a variant of the deep normal structures and may mimic a mass. The sternalis muscle is an uncommon anatomic variant of the chest wall musculature. It is located subcutaneously over the pectoralis muscle and has a parallel course to the sternum. It runs from the infraclavicular area to the caudal aspect of the breast. This inconsistent muscle has varying shapes, contours and sizes and may mimic a mass lesion on the craniocaudal (CC) mammogram. Familiarity with its mammographic appearance and ultrasonographic correlation is essential to avoid confusion with a malignant lesion. In this case report, we describe mammographic and ultrasonographic imaging findings of the sternalis muscle and review the literature. The sternalis muscle is a supernumerary muscle located in the anterior thoracic region, running parallel to the sternum. Different anatomical studies have reported the prevalence of the sternalis muscle to be 1.923.5% (4). It was first shown on mammography by Bradley et al. (5), who described it in six women. Case ReportA forty-eight year old patient was interpreted in our centre for screening mammography. Standard CC and MLO views were obtained and interpreted with previous mammograms. CC mammogram demonstrated a developing density in the medial posterior part of the breast. The density was round in shape and the edges were well defined ( Figure 1). As we interpreted that lesion as a developing density, ultrasound examination was performed. Ultrasonographic views showed approximately 5x35x70 mm muscle tissue over the right pectoralis muscle. The muscle tissue was well

show abstract

Section: Discussionmentioning

confidence: 99%

The Musculus Sternalis: Ultrasonographic Verification of a Rare but Benign Mammographic Finding

Özbalcı¹,

Saracoglu²

2013

J Breasth Health

View full text Add to dashboard Cite

show abstract

“…It is located superficial to the pectoralis major muscle and usually runs obliquely downward and laterally (Scott-Conner and Al-Jurf, 2002;Arraez-Aybar et al, 2003). The accessory muscle we observed looked like a sternalis muscle located deep to the pectoralis major muscle.…”

mentioning

confidence: 89%

A rare accessory muscle of the anterior thoracic wall

Natsis

Totlis

2007

Clinical Anatomy

View full text Add to dashboard Cite

“…Quanto ao gênero, essa variação atinge mais a população do sexo feminino (8,7%) do que do sexo masculino (6,4%) 3 .…”

Section: Discussão Variações Anatômicas Do Músculo Esternalunclassified

“…A incidência desse mús-culo varia conforme a raça 2 e o gênero, sendo mais predominante no sexo feminino 3 . Quanto à morfologia, as fibras do músculo esternal geralmente estão dispostas na direção crânio-caudal e o músculo está situado anteriormente ao osso esterno e suas estruturas adjacentes 1 .…”

Section: Introductionunclassified

Importância clínica do músculo esternal e suas variações anatômicas: uma revisão sistemática da literatura

2017

View full text Add to dashboard Cite

A presença do músculo esternal é uma variação anatômica que está situada anteriormente ao osso esterno e suas estruturas adjacentes e não tem função totalmente definida. Há na literatura mais relatos de estudos anatômicos sobre o músculo esternal do que sobre as implicações clínicas da sua presença. O objetivo deste estudo foi analisar as descrições existentes das variações anatômicas do músculo esternal, compreendendo, assim, a importância clínica desse conhecimento. Foram avaliados artigos nas línguas portuguesa e inglesa, indexados nas bases de dados PubMed e SciELO, publicados entre 1867 e 2016. Buscou-se verificar os tipos de variações anatômicas do músculo esternal descritas, suas origens e inserções, inervação e irrigação sanguínea. Em seguida, foi relatada a importância clínica do conhecimento dessa variação. O músculo esternal apresenta diversas dimensões e inserções, o que dificulta a determinação de sua função. Devido à localização paraesternal, em exames de imagem o referido músculo pode ser visto como uma nodulação anormal na região da mama e ser confundido com um tumor. O reconhecimento dessa variação antes de procedimentos cirúrgicos na parede torácica evita possíveis complicações e possibilita o uso do tecido como retalho muscular em cirurgias reconstrutivas da mama; também pode ser usado na melhora de resultados estéticos em mamoplastia de aumento ou fornecer cobertura extra para próteses. O conhecimento sobre essa variação anatômica é bastante relevante, pois a percepção da existência do músculo esternal e de suas variações relaciona-se a importantes implicações clínicas em cirurgias de mama e tórax.Palavras-chave: esterno; variação anatômica; cirurgia torácica. ABSTRACTThe presence of sternal muscle is an anatomical variation, located above the sternum and adjacent structures, and its function is not fully defined. In the literature, there are more reports of anatomical studies of the sternal muscle than clinical implications of its presence. The objective of this study was to analyze descriptions about anatomical variations of the sternal muscle and understand the clinical importance of this knowledge. Articles in Portuguese and English, indexed in the databases PubMed and SciELO, from 1867 to 2016, were evaluated. The types of anatomical variants of sternal muscle, its origins and insertions, innervation and blood supply were observed. After that, was brought the clinical importance of knowledge of this variation. The sternal muscle has several dimensions and inserts, making difficult to determine its function. Due to its parasternal location in imaging studies it may be seen as an abnormal bulge in the breast region and confused with a tumor. The discovery of this variation before thoracic surgical procedures avoids possible complications, enabling its use as a muscle flap in reconstructive surgery after mastectomy or improving the aesthetic result of breast augmentation providing extra covering for the prosthesis. The knowledge about this anatomical variation is quite relevant, because the...

show abstract

The sternalis muscle

Cited by 32 publications

References 7 publications

The Musculus Sternalis: Ultrasonographic Verification of a Rare but Benign Mammographic Finding

The Musculus Sternalis: Ultrasonographic Verification of a Rare but Benign Mammographic Finding

A rare accessory muscle of the anterior thoracic wall

Importância clínica do músculo esternal e suas variações anatômicas: uma revisão sistemática da literatura

Contact Info

Product

Resources

About