Progesterone Receptor
Also written as PR.
Staining for estrogen and progesterone receptors is negative.
What our notes say
- Staining for estrogen and progesterone receptors is negative. (Breast mcqs — Past Paper Questions & Answers)
- Microscopic examination shows a poorly differentiated carcinoma that is negative for estrogen and progesterone receptors and negative for HER2/neu. (Breast mcqs — Past Paper Questions & Answers)
- Breast cancer is now understood as a group of molecularly distinct diseases, classified by immunohistochemistry (IHC) for Oestrogen Receptor (ER), Progesterone Receptor (PR), and HER2/neu, broadly reflecting three major pathogenic pathways: (General & Systemic Pathology SAQ Paper II — 15 July 2025 (MBPA 3500, MKU Year 3,)
- Given the typical characteristics of male breast cancer, what hormone receptor status is most likely to be positive? → Estrogen Receptor (ER) and Progesterone Receptor (PR) positive (Disorders of the Vagina and Breast)
- Selective progesterone receptor modulators (ulipristal) where available. (Year 4 Gynaecology CAT (MBOG 4212): 13 December 2019)
- Oestrogen receptor positive (ER+), Progesterone receptor positive (PR+), HER2 negative (General & Systemic Pathology SAQ — Paper II)