CREM and neoplasm: Furthermore, 10 of these 26 (38.5%) patients had a tumor with an EWSR1::ATF1 fusion, eight (30.8%) had EWSR1::CREB1 fusion, six (23.1%) had EWSR1::CREM, one (3.8%) had EWSR1::CREB3L3, and one (3.8%) had FUS::CREM fusion.