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Definition of Progesterone receptor test

Progesterone receptor test: A lab test that is used to determine whether breast cancer cells have progesterone receptors. If the cells have progesterone receptors, they may depend on progesterone for growth and usually respond to hormone therapy. Breast cancer cells that do not have progesterone receptors do not need the hormone progesterone to grow and usually do not respond to hormone therapy.

QUESTION

A lump in the breast is almost always cancer. See Answer
Reviewed on 12/11/2018
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