リンパ節
There are several prognostic factors which determine cancer specific survival after radical cystectomy. Factor with detrimental effect of cancer specific survival are old age, higher tumor grade and pathological stage, lymph node metastasis, presence of lymphovascular invasion and positive soft tissue margin. Lymph node density (positive lymph nodes/total lymph nodes observed in the specimen from surgery) is a predictor of survival in lymph node positive disease. Higher the density lower is the survival.