59-year-old female with history of bilateral mastectomy in March 2016 and positive surgical margins in the right breast. Evaluate for abnormal right axillary lymph nodes. A targeted right axillary ultrasound was performed. Circumscribed nearly anechoic lesion with posterior through transmission is identified near the patient's site of recent surgery, compatible with an oil cyst. This cyst measures 0.4 x 0.5 x 0.5 cm. No abnormal lymph nodes or suspicious solid or cystic lesions are identified.
Right axillary oil cyst. No sonographic evidence of malignancy in the right axilla. Recommend surgical follow-up to direct any further management.BIRADS: 2 - Benign finding.RECOMMENDATION: B - Surgical Consultation.