62 year old female presents for follow-up and possible aspiration of a right lower axillary cyst. Personal history of left lumpectomy in 1997 for DCIS. No current breast complaints. A targeted right axillary ultrasound was performed for the imaging area of concern. Within the right mid to lower axilla there is redemonstration of a oval, parallel, anechoic lesion which is smaller than on prior examination, today measuring 0.6 x 0.1 x 0.3 cm, suggesting resorbing cyst.
High probability benign right axillary cyst. Given the interval decrease in size and the benign appearance, follow-up right axillary ultrasound is recommended in 6 months to further assess stability. Additionally, right breast mammogram should also be performed at this time to assess stability of high probability benign calcifications in the right breast, as recommended on prior study dated March 25, 2015. Results and recommendations were discussed with the patient the time of her examination.BIRADS: 3 - Probably benign finding.RECOMMENDATION: 3B - Followup at Short Interval (1-11 Months).