MYC and meningioma: Similarly, tumor 128M displayed a focal amplification of the c-myc oncogene (MYC) on chromosome 8, whose expression may correlate with proliferative index and help predict recurrence of meningiomas [54,55], but the same tumor also had a high level gain on chromosome 17 (49.2–64.0 Mb), overlapping with the large region amplified in 126M.