Urology treats urinary tract diseases in all genders and male reproductive issues, covering the kidneys, bladder, prostate, urethra, from infections to complex cancers.
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Diagnosing a bladder tumor starts with symptoms and follows a careful, step-by-step process. At Liv Hospital, the main goals are to confirm cancer, find out how far it has spread, and check the kidneys and ureters for other tumors. Since bladder cancer often comes back or gets worse, getting the diagnosis right is crucial for successful treatment. The best way to diagnose is by looking directly inside the bladder, along with using advanced scans and urine tests.
Doctors usually start testing for bladder cancer when a patient has blood in the urine (either visible or microscopic) or ongoing urinary symptoms that do not improve with antibiotics. The urologist will do a physical exam, run lab tests, and use a scope to look inside the bladder to get a full understanding of the problem.
The cornerstone of bladder cancer diagnosis is flexible cystoscopy. This is an outpatient procedure performed under local anesthesia (lidocaine gel). A thin, flexible fiber-optic or digital telescope (cystoscope) is inserted through the urethra into the bladder. This allows the urologist to visually inspect the entire mucosal surface of the bladder, the bladder neck, and the prostatic urethra in men.
If a tumor is identified during office cystoscopy, the patient is then scheduled for a TURBT (Transurethral Resection of Bladder Tumor) in the operating room, which serves as both a therapeutic procedure and the definitive biopsy.
In conjunction with physical inspection, laboratory analysis of the urine provides vital clues.
Because the bladder is lined with the same urothelium as the renal pelvis and ureters, the “field effect” of carcinogens puts the entire urinary tract at risk. Therefore, it is mandatory to image the upper tracts.
The pathology laboratory provides the final and definitive diagnosis following TURBT. The pathologist analyzes the resected tissue to provide:
Multiparametric MRI is becoming more common for checking how far bladder cancer has spread. It uses the VI-RADS scoring system to predict if the tumor has invaded the muscle before surgery. MRI gives clearer images of soft tissue than CT, which helps doctors tell if a tumor is just on the surface or has gone deeper, making it easier to plan surgery.
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Flexible cystoscopy is generally not considered painful, but it can be uncomfortable. It is performed using a liberal amount of lubricating jelly that contains a local anesthetic (lidocaine) to numb the urethra. Patients may feel a sensation of pressure or the urge to urinate as the scope enters the bladder and fluid is instilled. The procedure typically takes only a few minutes, and most patients tolerate it very well without sedation.
Even if a tumor is confirmed in the bladder, a CT scan (specifically a CT Urogram) is necessary to check the “upper tracts”—the kidneys and ureters. Because the inner lining of the kidney is the same type of tissue as the bladder, tumors can occur there simultaneously. The CT scan also checks if the bladder cancer has spread to lymph nodes or other organs, which is critical for determining the stage of the disease.
A positive urine cytology indicates cancer cells were found in the urine, whereas a negative cystoscopy indicates no tumor was seen in the bladder. This is a diagnostic dilemma that requires careful investigation. It could suggest a flat, invisible tumor (Carcinoma in Situ) in the bladder, a cancer in the upper urinary tract (ureters or kidneys) that the cystoscope didn’t detect, or cells shed from the prostatic urethra in men. Further imaging and biopsies are usually required.
“Grade” refers to how abnormal the cancer cells look under a microscope. Low-grade cancers have cells that look more like normal bladder cells; they tend to grow slowly, rarely invade the muscle or spread, but they often come back (recur). High-grade cancers have disorganized, aggressive-looking cells; they are much more likely to invade the bladder muscle and spread to other parts of the body, requiring more aggressive treatment.
Currently, MRI cannot replace the need for a TURBT (resection/biopsy). While modern MRI is excellent at predicting whether a tumor has invaded the muscle, it cannot provide the actual tissue sample needed for a definitive diagnosis of the tumor type and grade. Tissue analysis by a pathologist remains the only way to confirm the exact nature of the cancer and guide treatment decisions.
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