Evaluation of Pectoralis Muscle Invasion in Breast Cancer Patients by an Add-on Sonography

Main Article Content

Surapong Chareewit


Mammography and sonography are standard methods for breast cancer screening and diagnosis.
This retrospective descriptive study aimed to evaluate the accuracy of an add-on sonographic technique
in breast cancer patients with pectoralis muscle invasion in Buddhachinnaraj Phitsanulok hospital during
May 2015 to September 2017. There were 55 breast cancer patients. An add-on sonographic technique
showed positive results for pectoralis muscle invasion in 20 patients (36.4%) and negative results in
35 patients (63.6%). While surgical findings and pathological reports showed pectoralis muscle invasion in
16 patients (29.1%) and no muscle invasion in 39 patients (70.9%). Sensitivity, Specificity, PPV, NPV and
Accuracy of the add-on sonographic technique are 100.0%, 89.7%, 80.0%, 100.0% and 92.7%, respectively.
In conclusion, an add-on sonographic technique has high accuracy to evaluate pectoralis muscle invasion
in breast cancer patient


Article Details

Research Article
Author Biography

Surapong Chareewit

Department of Radiology. Buddhachinaraj Phitsanulok Hospital, Phitsanulok, Thailand. 65000