Renal Cell Carcinoma (RCC) is a type of kidney cancer that originates in the cells of the renal tubules. RCC is the most common type of kidney cancer in adults, accounting for approximately 90% of all cases. There are several synonyms for Renal Cell Carcinoma, including clear cell renal carcinoma, renal cell adenocarcinoma, hypernephroma, and Grawitz tumor. Each of these synonyms refers to a specific type of kidney cancer that is classified based on the appearance of the cancer cells under a microscope. Regardless of the synonym used, early detection and treatment of RCC are crucial for the best possible outcomes for patients.