Tumor histology: TCC tumors (transitional cell carcinoma): 122/131 cases (93.1%), adenocarcinoma tumors: 9/131 cases (6.8%); non-muscle invasive TCC tumors: 7/131 cases (5.3%), muscle invasive TCC tumors: 124/131 cases (94.6%), positive lymph nodes in 10/131 cases (7.6%).