1. Presented by Peter Illei, M.D. and prepared by Joseph J. Maleszewski, M.D.

68 y.o Asian American female patient with an unremarkable screening mammogram 10 month earlier. 6 month following the negative mammogram patient palpated an irregular breast mass in the lateral left breast, which measured 3.1 cm on ultrasound. (Core biopsy showed a poorly differentiated spindle cell neoplasm that was ER/PR and Her2 negative. Ki67 showed a proliferative index of >75%.

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