Similarly, CRTC1::MAML2 fusions have been described in mucoepidermoid carcinoma of various sites [16], whereas CRTC1::SS18 fusion has been implicated in a subset of undifferentiated small round blue cell sarcomas [17] CMTCT have only been reported in CMTCT [6]. This evidence concerns the gene SS18 and mucoepidermoid carcinoma.