Let's imagine a clinical scenario, quite common, by the way. Let's suppose a patient comes to the outpatient clinic complaining of blood in the urine. An ultrasound is performed, and the report reads, literally: 'volume formation of such-and-such size in the bladder.' Both the treating physician and the patient are faced with several crucial questions: what is this voluminous formation, bladder cancer, or a benign polyp? If it's cancer, what stage is it, and how do we treat the patient?
To answer all these questions, we need to perform the removal of the bladder tumor and its histological examination. It's important to understand a simple truth: the stage of bladder cancer depends on the extent of tumor invasion into the organ wall. That's why we take a special instrument, pass it through the urethra, excise the tumor, cut out the underlying part of the bladder wall, and send all excised tissue for histological examination. Thus, TUR- transurethral resection - is an operation to remove a bladder tumor through the urethra. Naturally, all this is done under anesthesia.