KIT and melanoma: After adjustment, melanoma patients presented lymph node infiltration (HR = 2.55, 95% CI = 1.09–5.96, p = 0.030), high mitotic index (4.90, 95% CI = 1.31–18.37, p = 0.018), and positive staining of CD117 protein (1.79, 95% CI = 1.12–2.87, p = 0.015) had a higher risk of relapse.