The Cxbladder Rule-Out of Recurrent Urothelial Carcinoma

Eligibility Details: Inclusion Criteria: 1. Patient is undergoing investigative cystoscopies for the monitoring of recurrence of urinary tract UC at intervals prescribed by the clinical practitioner 2. Patients on an "all-comers" basis 3. Positive diagnosis for primary or recurrent bladder tumour within the past 5 years 4. Able provide a voided urine sample of the required minimum volume 5. Able to give written consent 6. Able and willing to comply with study requirements 7. Aged 18 years or older Exclusion Criteria: 1. Prior genitourinary manipulation (flexible or rigid cystoscopy / catheterisation, urethral dilation) in the 14 days before urine collection, 2. Patients who had exposure to intravesical BCG, had completed induction BCG but without a subsequent clear cystoscopy 3. Recent history of glomerulonephritis, nephrosis or other renal inflammatory disorders, 4. Recent history of pyelonephritis 5. Total cystectomy of the bladder, neo bladders and illeal conduits 6. Previous muscle invasive bladder tumour (pT2 or greater)