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Kidney cancer, also known as renal cancer, is a type of cancer that starts in the cells in the kidney. The two most common types of kidney cancer are renal cell carcinoma (RCC) and transitional cell carcinoma (TCC, also known as urothelial cell carcinoma) of the renal pelvis. These names reflect the type of cell from which the cancer developed. The different types of kidney cancer (such as RCC and UCC) develop in different ways, meaning that the diseases have different long term outcomes, and need to be staged and treated in different ways. RCC is responsible for approximately 80% of primary renal cancers, and UCC accounts the majority of the remainder. Overall five year survival rates in the United States are 73%.〔(【引用サイトリンク】url=http://seer.cancer.gov/statfacts/html/kidrp.html )〕 ==Types== In addition to renal cell carcinoma and renal pelvis carcinoma, other, less common types of kidney cancer include: * Squamous cell carcinoma * Juxtaglomerular cell tumor (reninoma) * Angiomyolipoma *Bellini duct carcinoma *Clear-cell sarcoma of the kidney *Mesoblastic nephroma * Wilms' tumor, usually is reported in children under the age of 5. *Mixed epithelial stromal tumor Rarely, some other types of cancer and potentially cancerous tumors that more usually originate elsewhere can originate in the kidneys. These include: *Clear cell adenocarcinoma *Transitional cell carcinoma *Inverted papilloma *Renal lymphoma *Teratoma *Carcinosarcoma *Carcinoid tumor of the renal pelvis Cancer in the kidney may also be secondary, the result of metastasis from a primary cancer elsewhere in the body. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Kidney cancer」の詳細全文を読む スポンサード リンク
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