Bilateral sternalis muscle at mammography

Case contributed by Dr Mark Holland


Third round breast screen

Patient Data

Age: 55
Gender: Female
Modality: Mammography

Triangular opacities seen medially in both breasts represent the sternalis muscle. Only seen on the CC and Cleavage views

Modality: Mammography

Normal appearance on the MLO

Case Discussion

Uncommon for bilateral sternalis muscles to be seen. 

When bilateral as in this case, they are usually asymmetrical.

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Case Information

rID: 24366
Case created: 10th Aug 2013
Last edited: 16th Dec 2015
System: Breast
Inclusion in quiz mode: Included

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