Images of gross gastric morphology (Fig. 2a, left), H&E staining (Fig. 2A, middle) and Pan-Cytokeratin immunostaining (Additional file 1: Figure S1) showed that tumour number (Fig. 2b) and maximum size (Fig. 2c) were significantly higher in Bap-treated Bcl6b−/− mice versus the control group. This evidence concerns the gene BCL6B and neoplasm.