Of the CD44-positive sections, weak staining (1+) was found in 26% (26 of 100) (Figure 3B), moderate staining (2+) in 43% (43 of 100) (Figure 3E) and strong staining (3+) in 31% (31 of 100) in primary tumours, whereas weak staining (1+) was found in 20% (8 of 40), moderate staining (2+) in 35% (14 of 40) and strong staining (3+) in 30% (12 of 40) (Figure 3H) in metastatic lesions. This evidence concerns the gene CD44 and neoplasm.