BIRC5 and malignant peripheral nerve sheath tumor: Interestingly, the BIRC5/SURVIVIN gene (baculoviral inhibitor of apoptosis repeat-containing 5/survivin), a member of the inhibitor of apoptosis (IAP) family, is located in the same 17q25 region and it is a strong candidate target gene for amplification in adult MPNST [10]–[12].