Focally deleted regions identified the tumour-suppressor genes RHOA at 3p21, CDKN2A and CDKN2B at 9p21, RAD51B, MAX, DICER1, BCL11B, NKX2-1, CCNB1IP1 and BAZ1A at 9q33. The gene discussed is CDKN2B; the disease is neoplasm.