Clear-cell carcinoma, also known as clear-cell adenocarcinoma and mesonephroma,[1] is an epithelial-cell-derived carcinoma characterized by the presence of clear cells observed during histological, diagnostic assessment. This form of cancer is classified as a rare cancer with an incidence of 4.8% in white patients, 3.1% in black patients, and 11.1% in Asian patients.[2][3]

Reference
Wiki: Kidney clear cell carcinoma