Progesterone receptor expression is selectively reduced in adenomyosis among endometriosis-associated lesions: a cross-sectional immunohistochemical study of 118 specimens from 100 women
This cross-sectional study of 118 specimens from 100 women reveals that reduced progesterone receptor expression is a specific characteristic of adenomyosis rather than a generalized feature of all endometriosis-associated lesions, suggesting that lesion type should be considered when selecting progestin therapy.