Table 1. Definition of TNM Stage 0a

StageTNMDefinition
0aTa, N0, M0Ta = Papillary noninvasive carcinoma.
N0 = No regional lymph node metastasis.
M0 = No distant metastasis.
0isTis, N0, M0Tis = Carcinoma in situ.
N0 = No regional lymph node metastasis.
M0 = No distant metastasis.

T = primary tumor; N = regional lymph node; M = distant metastasis.

aReprinted with permission from AJCC: Renal pelvis and ureter. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 749–55.

From: Transitional Cell Cancer of the Renal Pelvis and Ureter Treatment (PDQ®)

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PDQ Cancer Information Summaries [Internet].
Bethesda (MD): National Cancer Institute (US); 2002-.
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