ALK‐ rearranged RCC is a solitary tumour with diverse morphology that includes a multitude of growth patterns, including solid, papillary, tubular, tubulocystic, trabecular, cribriform, signet‐ring/single cell, ‘mucinous tubular and spindle cell RCC‐like’ and ‘metanephric adenoma‐like’ (Figure 7A–E).2, 118. The gene discussed is ALK; the disease is renal cell carcinoma.