Presentation
Palpable right breast lump.
Patient Data
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Large well circumscribed mass in the right outer breast centrally. There is a complete low density halo which encircles the mass on both views. Note also that despite its large size it is not very dense. The density is similar to that of the surrounding fibroglandular tissue and the normal parenchymal elements are discernible through the mass. These are reassuring morphologic features.
Nonetheless, as it is a solitary mass, in the absence of prior imaging showing stability, it warrants further workup with ultrasound.
Hypoechoic mass without vascularity. On real time imaging the flowing internal echogenicity was present. There are multiple features of benignity - circumscribed margin, parallel ovoid shape and the presence of mobile cholesterol crystals producing typical color streaking on Doppler ultrasound.
The lesion was aspirated to dryness using a 19G needle with approximately 5 mL of yellow fluid aspirated.
Case Discussion
Typical imaging appearance of a benign breast cyst.
Despite the reassuring mammographic appearances, a solitary circumscribed mass on mammogram should be further assessed unless prior imaging indicates stability.
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