VHL and Gerstmann syndrome: Six major VHL-related lesions (CHB, RA, RCC, PCT, PHEO, and GS) were observed in the c.194C > T p.Ser65Leu mutational subgroup, while only three VHL lesions (CHB, RCC, and PCT) presented in the c.194C > G p.Ser65Trp mutational subgroup.