Fiber-Optic Confocal Microscopy of the Urinary Tract Histopathology

Inclusion Criteria:Research subjects with suspected urinary tract pathology (e.g., bladder tumors) who are scheduled to undergo cystoscopy with possible excisional biopsy (e.g. transurethral resection of bladder tumor) in the operating room.\
 Exclusion Criteria:History of hypersensitivity to fluorescein; active urinary tract infection; pregnant; currently breast feeding;