Comparison of Mammography, Ultrasonography, and both Combined in the Interpretation of Palpable Breast Mass

Abstract

Background: Breast cancer is the most common female malignancy in worldwide and the second leading cause of female cancer death in the United States (1, 14). On average, every two  minutes a woman is diagnosed with breast cancer and one  woman will die of breast cancer every thirteen   minutes(13) In Libyan breast cancer is most  common cancer in female (17 ) Although the majority of palpable lumps are benign, a new palpable breast mass is a common presenting sign of breast cancer. the aim of the study  to reveal  the role  of USS and MG  and both in evaluating  palpable breast mass because both are available and more accurate in evaluated palpable breast  mass depend on the  aging and breast density .Materials and methods: prospective  study  between January   2018 and march   2019 In Department of Radiology in Benghazi medical center (BMC); used the Breast Imaging Reporting and Data System (BI-RADS) classification on fifty palpable  breast masses  in two models (USS and MG ) and described each masses by selecting a single term from the Bl-RADS lexicon for description mass margin and  shape. Kappa values were calculated to assess the agreement between BIRADS assessment category and agreement between descriptions of masses margin and shape .Additionally, another reader used same USS Bl-RADS lexicon for description mass margin to assessed lnter-observer variability. Result :Regarding BIRADS assessment category, agreement  between the MG  and combined (USS and MG ) interpretations were moderate (K=0.4);agreement between USS and combined (USS and MG )  was very good (k=0.84); agreement between BIRADs category of  USS and  MG in descriptive shape of palpable breast mass was moderate (k=0.50) while for margin fair agreement (k=0.26).poor lnter-observer variability(k=0.19)  in USS Bl-RADS lexicon for description mass margin. Conclusion: USS better than MG in detected palpable breast mass so can be use   as diagnostic tool for characterized palpable breast mass.