The sternalis muscle in cadavers

Anatomical facts and clinical significance

N. A. Rahman, Srijit Das, I. Maatoq Sulaiman, Khin Pa Pa Hlaing @ Farida Hussan, Farihah Suhaimi, A. A. Latiff, Faizah Othman

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The stemalis is an anomalous muscle located in the anterior wall of thorax and several past reports have described its presence with clinical implications. The sternalis muscle may be incidentally detected during routine cadaveric dissections and autopsies. We observed the presence of anomalous sternalis muscle on both sides of the anterior chest wall in 25 cadavers (n = 50), over a span of three years. Out of a 50 cases, we observed a single case of sternalis on the right side of the 55-year-old male cadaver (2%). The stemalis was found to be absent in the rest 49 cases (98%). The stemalis muscle displayed an oblique course in the anterior wall of the thorax. The muscle originated near the' seventh costal cartilage extending obliquely upwards to insert into the second costal cartilage close to the sternum. The originating portion of the muscle was located at a distance of 3.5 cm lateral to the mid-sternal plane. The vertical length and the maximum width of the anomalous stemalis muscle measured 9 cm and 1.9 cm, respectively. The fibers of the muscle vertically ascended upwards. No other associated anomalies were observed in the same cadaver. The presence of stemalis muscle is considered to be a rare variation with no earlier studies being performed in the Malaysian population. The anomalous stemalis muscle may be important for reconstructive surgeons performing mastectomy and radiologists interpreting mammograms. Thus, the stemalis muscle may be academically, anthropologically and surgically important. Clin Ter 2009; 160(2): 129-131.

Original languageEnglish
Pages (from-to)129-131
Number of pages3
JournalClinica Terapeutica
Volume160
Issue number2
Publication statusPublished - Mar 2009

Fingerprint

Cadaver
Muscles
Thorax
Sternum
Mastectomy
Thoracic Wall
Dissection
Autopsy

Keywords

  • Anatomy
  • Anomalous
  • Muscle
  • Rectus
  • Sternalis
  • Thorax

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Rahman, N. A., Das, S., Sulaiman, I. M., Pa Pa Hlaing @ Farida Hussan, K., Suhaimi, F., Latiff, A. A., & Othman, F. (2009). The sternalis muscle in cadavers: Anatomical facts and clinical significance. Clinica Terapeutica, 160(2), 129-131.

The sternalis muscle in cadavers : Anatomical facts and clinical significance. / Rahman, N. A.; Das, Srijit; Sulaiman, I. Maatoq; Pa Pa Hlaing @ Farida Hussan, Khin; Suhaimi, Farihah; Latiff, A. A.; Othman, Faizah.

In: Clinica Terapeutica, Vol. 160, No. 2, 03.2009, p. 129-131.

Research output: Contribution to journalArticle

Rahman, NA, Das, S, Sulaiman, IM, Pa Pa Hlaing @ Farida Hussan, K, Suhaimi, F, Latiff, AA & Othman, F 2009, 'The sternalis muscle in cadavers: Anatomical facts and clinical significance', Clinica Terapeutica, vol. 160, no. 2, pp. 129-131.
Rahman NA, Das S, Sulaiman IM, Pa Pa Hlaing @ Farida Hussan K, Suhaimi F, Latiff AA et al. The sternalis muscle in cadavers: Anatomical facts and clinical significance. Clinica Terapeutica. 2009 Mar;160(2):129-131.
Rahman, N. A. ; Das, Srijit ; Sulaiman, I. Maatoq ; Pa Pa Hlaing @ Farida Hussan, Khin ; Suhaimi, Farihah ; Latiff, A. A. ; Othman, Faizah. / The sternalis muscle in cadavers : Anatomical facts and clinical significance. In: Clinica Terapeutica. 2009 ; Vol. 160, No. 2. pp. 129-131.
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