SMARCB1 and neoplasm: In five other patients (patients 1, 2, 3, 5, 7) SMARCB1 (INI1) alterations (loss and mutations) are accompanied by the loss or inactivation of genes with a tumor suppressive role such as CDKN2A, ATM, NF2 and PARK2 representing a complex genotypes such as for example seen in epithelioid sarcoma19.