依据你描述 ，与导管“乳癌”大小 及“MRI based的活检”出血等等特征，更像是下面这个，也是常被误诊乳癌的之一。
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“What is a breast papilloma, and is it cancer?
Also called intraductal papilloma, a breast papilloma is a small, wartlike growth in the breast’s milk ducts. This benign (noncancerous) condition may cause a clear or bloody discharge from the nipple, or you may feel a small lump behind or next to the nipple. Having one papilloma does not raise your breast cancer risk, though having several of these growths has been linked to higher risk.”
