MYCN and neoplasm: For example, the calling of losses of chromosomes 1p, 3p, 4q, 6q, 10q, 12q and 16q and gains on chromosomes 11p, 13p and 17 withing I007_024 as well as loss of chromosome 16, gain on chromosome 6q and MYCN amplification within ICGC_GBM61, could potentially be used as an additional confirmation to annotate any ambiguous clusters as representing either tumor or stromal cells.