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Case 77

A 56-year-old female with a irregular lesion on her left breast.

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  1. What is the ER, PR, HER stain combination are typically show in this entity?

    A: ER, PR, HER2 all negative

    B: ER+, PR+, HER2-

    C: ER-, PR+, HER2-

    D: ER+, PR-, HER2+


Answer

This is invasive lobular carcinoma and the typical breast biomaker profile for it are, ER, PR+ and HER2-.



Case credit: UCSD Pathology

Author: Wangpan Jackson Shi, MD

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