Question: how many types of kidney cancer are there?
Answer: Renal cell carcinoma. Renal cell carcinoma is the most common type of adult kidney cancer, making up about 85% of diagnoses. ... 
Urothelial carcinoma. This is also called transitional cell carcinoma. ... 
Sarcoma. Sarcoma of the kidney is rare. ... 
Wilms tumor. ... 
Lymphoma.