Renal cell carcinoma  (Kidney Cancer)

Renal cell carcinoma (RCC) is the most common type of kidney cancer in adults, representing about 90% of all kidney cancer cases. It originates in the lining of the proximal convoluted tubule, which is part of the small tubes within the kidneys that filter waste from the blood and make urine. RCC typically grows as a single tumor within one kidney but can sometimes affect both kidneys.