EWSR1 and neoplasm: In 62 tumor samples analyzed by RNA sequencing, 55 contained an EWSR1-ETS family fusion including 28 EWSR1-FLI1 type I (51%), 11 EWSR1-FLI1 type II (20%), 11 other EWSR1-FLI1 variants (20%), 3 EWSR1-ERG (5%), and 2 EWSR1-FEV fusions (4%) (Table S5).