ADAMTS1, CDKN2A, CRABP1, MLH1, NR3C1, RUNX3, and SCGB3A1 showed increasing methylation frequencies from adenomas to carcinomas, while HOXA9, MAL, and MGMT displayed overall equal methylation frequencies in all tumor subgroups. The gene discussed is CDKN2A; the disease is neoplasm.