Considering the frequency of c-Kit/c-KitR expression in other histological subtypes of RCC (clear cell and papillary) all authors were in agreement to discover its slight [31], low (between 2% and 3% in clear cell and 5%–7% in papillary) [35,36,38] or absent [32,33,37,39] expression. Here, KIT is linked to renal cell carcinoma.