FIGURE 5
From: Topoisomerase IIα Expression in Pituitary Adenomas and Carcinomas: Relationship to Tumor Behavior

MIB-1–labeling index in treated and untreated pituitary tumors. Each bar denotes percentage of cases immunonegative (0) and with low (0 to 2%) and high (>2%) MIB-1 expression in each tumor type.