TFE3 and neoplasm: WHO subdivision of this entity includes a group of neoplasms distinguished by chromosomal Xp11.2 translocations resulting in the fusion of the transcription factor E3 (TFE3) gene to one of the different partners, including ASPSCR1, PRCC, NonO (p54nrb), PSF and CLTC [1], with the consecutive overexpression of the chimeric protein TFE3.