As seminally hypothesized, microscopic evaluation coupled with computerized image analysis of stained lung tissue samples revealed increased EGFR expression in the fibrotic forms of IIPs, comprising of IPF, COP, and fibrotic NSIP compared to the inflammatory component of cellular NSIP lung samples as well as control lung specimens (Figures 1–5(a)). This evidence concerns the gene EGFR and idiopathic pulmonary fibrosis.