Fig. 2From: Poorly differentiated mucinous carcinoma with signet ring cells in an ovarian endometriotic cyst: a case reportImmunostaining of the poorly differentiated mucinous carcinoma with partial signet ring cell carcinoma of the ovary. The tumor cells are diffusely positive for CK7 [a], and negative for CK20 [b], PAX-8 [c]. The atypical endometriotic epithelium was positive for PAX-8 [d]. Original magnifications × 200Back to article page