To the Editor: Vulvar melanoma (VM) accounts for 6% to 10% of vulvar malignancies. 1 Sanchez A. Rodríguez D. Allard C.B. et al. Primary genitourinary melanoma: epidemiology and disease-specific survival in a large population-based cohort. Urol Oncol. 2016; 34 () Current knowledge comes from smaller retrospective studies. 1 Sanchez A. Rodríguez D. Allard C.B. et al. Primary genitourinary melanoma: epidemiology and disease-specific survival in a large population-based cohort. Urol Oncol.