ABSTRACT
Regarding bladder cancer, the following statements are true EXCEPT?
The estimated male:female ratio is 2:1.
At the initial diagnosis of bladder cancer, 75% of cases are diagnosed as non-muscle-invasive bladder cancer and approximately 25% as muscle-invasive disease.
Approximately one-third of patients diagnosed with muscle-invasive disease have undetected metastasis at the time of treatment of the primary tumour.
25% of patients subjected to radical cystectomy present with lymph node involvement at the time of surgery.
