Role of 18F-FDG PET-CT in Urethral Malignant Melanoma and Analysis of the UK Guidelines on Ano-uro-genital Melanomas

Abstract Urethral melanomas are a rare subtype of noncutaneous melanomas. The disease has tendency to have skip lesions and early metastases as compared with cutaneous role fluorine-18 fluorodeoxyglucose (18F-FDG) positron emission tomography computed (PET-CT) is well established in cases recommended by the National Comprehensive Cancer Network (NCCN) for stage IIB IV cancer. There no guidelines on management melanomas; however, recently published United Kingdom national guideline aims streamline ano-uro-genital describes very limited use 18F-FDG PET-CT this case scenario. lesions, metastases, involvement brain parenchyma, finally usage anti-PD-1 medications key areas where shown superiority over CT scan. With report, we aim highlight strength urethral melanomas, which can be extrapolated other