[TNM staging: T3a/b or T4 and N0 M0-T3a means tumor invades perivesicular tissue microscopically,,T3b means tumor invades macroscopically, T4 indicates invasion of prostate, uterus or vagina, N0 means no regional lymph node metastases, M0 means no distant metastases. ( NCI )]
UMLS (NCI) C0855190