Diagnostic and Prognostic Impact of Progesterone Receptor Immunohistochemistry: A Study Evaluating More Than 16,000 Tumors

Figure 1

PR immunostaining in normal tissues. Positive PR immunostaining in (a) stromal cells and epithelial cells in proliferative endometrium, (b) stromal cells and epithelial cell in endocervix, (c) luminal cells of breast epithelium, (d) islets of Langerhans in pancreas, (e) stromal cells of the prostate, and (f) stromal cells of seminal vesicle.

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