TFE3 and renal cell carcinoma: Generally, RCCs are diagnosed in adults, with the exception of translocation RCC, which is driven by a hyper-activated fusion protein of the transcriptional activators TFE3 or TFEB and comprises 20–75% of RCCs in childhood (Ambalavanan and Geller, 2019; Caliò et al., 2019; Lee et al., 2018).