The immunohistochemical features of ovarian clear cell carcinoma (CCC) have only been described in small series of cases, and our own large series has not been the object of extensive immunohistochemical study. As an epithelial carcinoma, CCC reacts with most markers of epithelial differentiation, but relatively few more specific markers of clear cell differentiation are available. Two of these which are said to be positive in most but not all cases are HNF-1 beta (hepatocyte nuclear factor-1 beta) and ARID1A. Generally negative immunostains in CCC which may be of differential diagnostic value include WT-1, estrogen (ER) and progesterone (PR) receptors, and p53.
KeywordsProgesterone Receptor Clear Cell Carcinoma Mucinous Carcinoma Serous Carcinoma Endometrioid Carcinoma
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