A Novel Imaging Protocol in Use to Identify Lymph Nodes and Organs of Interest

Inclusion Criteria: * Signed written informed consent before any trial-related procedure is undertaken that is not part of the standard patient management * Subjects aged ≥ 18 years. Selected patients must have a confirmed or suspected diagnosis of disease in urologic regions of interest, with scheduled confirmatory surgical biopsy. * Subjects must have had either of the following scans: CT, PET or MR of acceptable quality at Brigham and Women's Hospital within the past year. * Subjects must also be scheduled to undergo lymph node dissection for a urologic cancer or organ removal of any of the following urologic regions of interest: Bladder, Prostate, Testicle, Ureter, Kidney, Urethra, Penis, and Scrotum * Subjects must also be scheduled to undergo a laparoscopic lymph node dissection and/or a urologic organ removal within any OR at BWH. Exclusion Criteria: * Severely impaired renal function with an EGFR \< 30 mL/min/body surface area * Evidence of any significant, uncontrolled comorbid condition that could affect compliance with the protocol or interpretation of the results, which is to be judged at the discretion of the PI * History of hypersensitivity or other contraindication to contrast media * Contraindication to general anesthesia * Pregnancy