Immunohistochemical staining was performed. The smooth muscle component and the endometrioid tissue were both positive for ER (A) and PR (B). The endometrioid stroma surrounding the endometrioid glands was positive for CD10 (C), while the smooth muscle component was positive for desmin (D).
Huanwen et al. Diagnostic Pathology 2013 8:131 doi:10.1186/1746-1596-8-131