Carcinoembryonic Antigen (CEA), Chromosomal analysis, Occult blood, B-RAF mutation analysis, Microsatellite Instability/HNPCC by molecular method and by IHC, Septin 9 (SEPT9), K-RAS, EGFR Mutation Detection by molecular method, p53 by molecular method and by IHC, Ki67 by IHC, p63 by IHC.