open access

Vol 64, No 4 (2005)
CASE REPORTS
Published online: 2005-09-20
Submitted: 2012-02-06
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The left sternalis muscle variation detected during mastectomy

Kabay B, Akdogan I, Ozdemir B, Adiguzel E
Folia Morphol 2005;64(4):338-340.

open access

Vol 64, No 4 (2005)
CASE REPORTS
Published online: 2005-09-20
Submitted: 2012-02-06

Abstract

The sternalis muscle variation is a well-known anatomical situation. It is present in 8.7% of women and 6.4% of men, although the incidence varies according to sex, race and ethnicity. During a left modified radical mastectomy operation on a 46-year-old female patient a sternalis muscle was detected on the pectoralis major muscle in the superficial fascia. It was in craniocaudal position and was parallel to the body of the sternum. The cylindrical muscle was approximately 8 cm in length and 2 cm in diameter. Such variations are considered to have their origin in embryological development. Awareness of muscular variations and their identification is important both for procedure through the proper dissection planes during breast surgery and in radiological examination and follow-up.

Abstract

The sternalis muscle variation is a well-known anatomical situation. It is present in 8.7% of women and 6.4% of men, although the incidence varies according to sex, race and ethnicity. During a left modified radical mastectomy operation on a 46-year-old female patient a sternalis muscle was detected on the pectoralis major muscle in the superficial fascia. It was in craniocaudal position and was parallel to the body of the sternum. The cylindrical muscle was approximately 8 cm in length and 2 cm in diameter. Such variations are considered to have their origin in embryological development. Awareness of muscular variations and their identification is important both for procedure through the proper dissection planes during breast surgery and in radiological examination and follow-up.
Get Citation

Keywords

sternalis muscle; thorax; breast; mastectomy; variation

About this article
Title

The left sternalis muscle variation detected during mastectomy

Journal

Folia Morphologica

Issue

Vol 64, No 4 (2005)

Pages

338-340

Published online

2005-09-20

Bibliographic record

Folia Morphol 2005;64(4):338-340.

Keywords

sternalis muscle
thorax
breast
mastectomy
variation

Authors

Kabay B
Akdogan I
Ozdemir B
Adiguzel E

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