A number of rarer histologic subtypes exists, including multilocular cystic RCC, collecting duct carcinoma, mucinous tubular and spindle cell carcinoma, neuroblastoma-associated RCC, and Xp 11.2 translocation-TFE3 carcinoma, with each making up <1% of RCC [5]. Here, TFE3 is linked to collecting duct carcinoma.