Fig. 2From: Complete response to orally administered melphalan in malignant pleural effusion from an occult female genital organ primary neoplasm with BRCA1/2 mutations: a case reportImmunohistochemical staining reveals carcinoma cells in pleural effusion to be mild positive for estrogen receptor (50%) (a), moderate positive for progesterone receptor (10%) (b), strongly positive for Wilms tumor 1 (100%) (c), and cancer antigen 125 (100%) (d)Back to article page