Presentation
Patient presented for screening mammogram, and reported a recently palpable mass in the right breast.
Patient Data
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There is a well circumscribed subareolar mass on the right. Apart from this, the screening mammogram series is normal, and notably there are no other circumscribed masses in either breast.
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Comparison with the previous mammogram confirms that this is a new finding. There was no abnormality in the same location on the prior screening round.

Ultrasound demonstrates a lobulated mass protruding from a dilated duct into a cystic space. Doppler confirms internal vascularity.
Case Discussion
Ultrasound guided core biopsy, followed by excision biopsy confirm benign intraductal papilloma.