ALK and hereditary clear cell renal cell carcinoma: The differentials considered were oncocytic renal tumours such as eosinophilic solid and cystic renal cell carcinoma, eosinophilic variant of chromophobe renal cell carcinoma, hybrid oncocytic/chromophobe tumour (HOCT), low grade oncocytic tumour (LOT), high grade oncocytic tumour (HOT), ALK rearranged renal cell carcinoma, MiT family translocation renal cell carcinoma, and epithelioid angiomyolipoma (AML).