MMP9 and adenocarcinoma: In contrast, MMP9 expression did not show significant differences between adenomas (mean: 1.09) and adenocarcinomas (mean: 1.11, p = 0.747) (Figure 4B, left panel), or among the paired comparison (52% of the samples had higher MMP9 in adenomas, p = 0.806) (Figure 4B, right panel).