Hierarchical clustering of all the PanIN and PDAC lesions.

<p><b>(A)</b> Venn diagram displays the numbers of common and unique probes in PDAC progression; <b>(B)</b> Heatmap of 93 commonly dysregulated probes (76 genes) is shown on the right. Each column represents a type of comparison and each row represents a gene probe. The level of up- and down-regulation is represented by the intensity of the red and green colour, respectively.