TFE3 and renal cell carcinoma: Initially designated as a distinct subtype in the 2004 WHO classification [1], Xp11.2 translocation/TFE3 gene fusion RCC was later reclassified in 2016 as part of the MiT (microphthalmia-associated transcription) family translocation RCC, alongside TFEB gene fusion RCC/t(6;11) RCC [2].