Combined with 9 FFPE samples, we found 7 samples with biallelic loss and 2 samples with single copy loss of CDKN2A. In CDC5, a sample without matched non-tumor, SNV analysis identified a cytosine-to-adenine transversion (c.360C > A), encoding a p.E120* non-sense mutation for CDKN2A gene with unknown somatic status. Here, CDKN2A is linked to neoplasm.