stage pTa bladder carcinoma
Thursday 2 January 2014
pTa carcinoma is defined by the 2002 TNM (tumor, lymph node, and hematogenous metastasis) staging system as noninvasive papillary carcinoma.
It should be distinguished from pT1 cancer by the absence of lamina propria invasion.
Histological grading is considered one of the most important prognostic factors for pTa bladder tumors.