Upper tract urothelial carcinoma staging

T0No evidence of primary tumor
TaNon-invasive papillary carcinoma
TisCarcinoma in situ
T1Tumor invades sub epithelium
T2Tumor invades muscularis 
T3Tumor invades beyond muscularis into perirenal or periureteric fat or into renal parenchyma
T4Tumor invades adjacent organs or through the kidney into perinephric fat
N0No regional lymph nodes
N1Spread to single lymph node < 2 cm
N2Spread to single lymph node > 2 cm or multiple lymph nodes
M0No distant metastasis
M1Distant metastasis present