Case 26 Answer 2
Benign, but discordant. Recommend surgical excision. This is a high density irregular spiculated mass. You will not end up eating your hat on this one. Some cancers induce such a prominent fibrotic response that this is all that can been seen on a needle biopsy core. The purpose of a needle biopsy in lesions like this is purely to help guide surgical planning. A benign core should not stop you from recommending that it be excised.
So, what about the mass in the right central breast?