2003
DOI: 10.3349/ymj.2003.44.4.719
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Bilateral Sternalis with Unusual Left-Sided Presentation: A Clinical Perspective

Abstract: An unusual variation creates interest among anatomists, but is a cause of concern among clinicians when it mimics a pathology. The sternalis muscle is one such variant of the anterior chest wall located subcutaneously over the pectoralis major, ranging from a few short fibers to a well-formed muscle. We observed a bilateral case, which was accompanied by an atypical presentation on the left side where a huge, bulky sternalis muscle was associated with the absence of the sternal fibers of the pectoralis major. … Show more

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Cited by 29 publications
(37 citation statements)
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“…Nerve supply to SM is commonly reported as coming from the pectoral nerves (medial or lateral pectoral) (Wallace;Lamont, 1887;Cunningham;Patten, 1934;Harper, 1936;Kida et al, 2000;Kumar et al, 2003) or anterior cutaneous branches of the intercostal nerves (Shepperd, 1889;Shen et al, 1992;Jeng & Su, 1998;O'Neill & Folan-Curran;Jelev et al;Saeed et al, 2002;ArraezAybar et al, 2003;Motabagani et al, 2004;Gupta & Harjeet, 2004;Sarikçıoglu et al). According to Barlow (1935), a literature review of 146 SM cases, reported by 17 authors, found that SM is supplied by the pectoral nerves in 68.5% of cases, intercostal nerves in 26.7%, and a combination of the two in 4.8%.…”
Section: Discussionmentioning
confidence: 99%
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“…Nerve supply to SM is commonly reported as coming from the pectoral nerves (medial or lateral pectoral) (Wallace;Lamont, 1887;Cunningham;Patten, 1934;Harper, 1936;Kida et al, 2000;Kumar et al, 2003) or anterior cutaneous branches of the intercostal nerves (Shepperd, 1889;Shen et al, 1992;Jeng & Su, 1998;O'Neill & Folan-Curran;Jelev et al;Saeed et al, 2002;ArraezAybar et al, 2003;Motabagani et al, 2004;Gupta & Harjeet, 2004;Sarikçıoglu et al). According to Barlow (1935), a literature review of 146 SM cases, reported by 17 authors, found that SM is supplied by the pectoral nerves in 68.5% of cases, intercostal nerves in 26.7%, and a combination of the two in 4.8%.…”
Section: Discussionmentioning
confidence: 99%
“…Young Lee et al (2006) encountered 86 cases out of 1387 CT chest scans where 7.3% of the cases were female, and 5.3% were male. It has been noted by several authors that SM may mimic carcinoma on imaging and that proper identification of SM as a benign variant muscle prevents unnecessary exploratory surgery (Kumar et al;Pojcharmarnwiputh et al, 2007).…”
Section: Discussionmentioning
confidence: 99%
“…Mostra-se mais frequentemente disposto na forma unilateral em 2 a 8% da população e com menor incidência em sua forma bilateral (1,7%). Corroborando tal informação, esta revisão encontrou um maior número de menção do músculo na sua variação unilateral, direita ou esquerda 9,[11][12][13][14][15][16][18][19][20][21] , quando comparada à forma bilateral 5,[7][8][9][10]12,[17][18][19] (Quadro 1).…”
Section: Discussão Variações Anatômicas Do Músculo Esternalunclassified
“…Devido à localização paraesternal, em exames de imagem, o músculo pode ser visto como uma nodulação anormal na região da mama e ser confundido com um tumor 1,30 . Para facilitar ou até mesmo permitir a Oliveira LA, Quintana HT, Oliveira F diferenciação do músculo esternal de uma real doença, como um possível tumor, Bradley et al 31 e Kumar et al 5 sugerem o uso concomitante de ressonância magnética, mamografia ou tomografia. Ainda, dependendo da localização, pode haver invasão de tumores mamários nesse músculo, tornando necessária a sua remoção cirúrgica durante mastectomias 4 .…”
Section: Importância Clínica Do Músculo Esternalunclassified
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