Fig. 2
From: CUL4A overexpression as an independent adverse prognosticator in intrahepatic cholangiocarcinoma
Representative photographs of CUL4A immunostaining in intrahepatic cholangiocarcinoma. Panels a, c, and e represent TMA cores at magnification 40×; b, d, and f represent selected areas from a, c, and e at higher magnification (200×). Expression indexes were calculated by multiplying the percentage of positive tumor cells by the average intensity. (a and b) Weak staining (1+) with 10% positive tumor cells. (c and d) Moderate staining (2+) with 60% positive tumor cells. (e and f) Strong staining (3+) with 75% positive tumor cells