Table 2.

Histological findings, estrogen receptor and progesterone receptor expression, and treatment response of the patients

CAH, complex hyperplasia with atypia; CH, complex hyperplasia without atypia; CR, complete response; MA, megestrol acetate; MET, metformin plus MA; NR, no response; PE, proliferative endometrium; PR, partial response; SE, secretory endometrium.

^*Staining distribution (percentage positive cells): -, ≤5%; 1+, 6%-25%; 2+, 26%-50%; 3+, 51%-75%; and 4+, 76%-100% (all reactions exhibited moderate to strong staining intensity). ^†Primary pathologic diagnosis was done in other hospitals and confirmed by pathologists in our hospital, all of which the expression of hormone receptors were missed.