EWSR1 and aneurysmal bone cyst: This is in line with previous reports on, in total, 18 cases of which 11 (~60%) showed NFATC2 rearrangement.1,2 In our series, EWSR1 was the most common fusion partner (at least 4/6) which is a bit higher as compared with previous reports where FUS was slightly more common (6/11) as compared with EWSR1 (5/11).1,2NFATC2 fusions were absent in 6 tumors previously diagnosed as ABC, and in which the characteristic USP6 fusion was lacking.18