<unk>  in computed tomography<unk>  <unk>  is a type of kidney cancer that originates in the papillary<unk>  of the kidney. It is rare, accounting for 1-3% of all kidney cancers. It is also recently described; a 2002 review found just 40 case reports worldwide. Previously, due to its location,<unk>  was commonly diagnosed as renal cell carcinoma or a subtype of renal cell carcinoma. However,<unk>  does not respond well to chemotherapy drugs used for renal cell carcinoma, and progresses and spreads more quickly.
Collecting duct carcinoma
Transitional cell carcinoma
Tubular carcinoma
Renal medullary carcinoma
Hyalinizing clear cell carcinoma
Renal anaplastic sarcoma
Renal medullary fibroma
Medullary carcinoma