NCIt definition : A malignant epithelial neoplasm of the kidney characterized by the presence of lipid-containing
clear cells within a vascular network. The tumor may metastasize to unusual sites
and late metastasis is common.;
Alternative definition : NCI-GLOSS: The most common type of kidney cancer. It begins in the lining of the renal
tubules in the kidney. The renal tubules filter the blood and produce urine.;