The respective expression of calretinin in reactive mesothelial cells and malignant mesothelioma was 93-100 and 0-20% of adenocarcinoma vs. none of the squamous cell carcinoma (Huang and Michael., 2014; Politi et al., 2005; Kim et al., 2009; Arora et al., 2011). This evidence concerns the gene CALB2 and adenocarcinoma.