After the analyses of six primary tumors, we have classified two tumors as classic MPNSTs (the sporadic SP‐04 and the NF1‐related NF1‐08) since both bore the complete inactivation of NF1, CDKN2A, and SUZ12 [10, 11, 12, 71, 72] and displayed an MPNST‐compatible genomic CN profile [10, 11]. The gene discussed is NF1; the disease is malignant peripheral nerve sheath tumor.