Abstract
This study describes a case of 45-year-old woman with a mass developed in the right breast. Physical examination revealed a 3 cm painless mass in the right breast as well as diffuse bulge in both axillary regions, though no significant lymphadenopathy was evident. Mammogram and ultrasound examination were carried out and showed malignant mass in the right breast and ectopic breast tissue in both axillae with multiple intraductal papillomas. Both mammographic and sonographic appearances of these lesions are described and discussed. The purpose of this study is to highlight the importance of occurrence of bilateral ectopic axillary breast with intraductal papilloma synchronously with right breast malignant mass and emphasize the importance of thorough mammographic and sonographic examination of the axilla in detecting such pathology.