KRT7 and renal cell carcinoma: Rohan et al. [16] suggested that clear-cell papillary renal cell carcinoma could be closely related (or represent the same disease) with other entities, such as renal angiomyoadenomatous tumour, renal cell carcinoma with prominent leiomyomatous proliferation, and clear-cell renal cell carcinoma with diffuse cytokeratin 7 immunoreactivity due to overlapping many morphological and immunochemical features.