CTNNB1 and ocular melanoma: Interestingly, within the TMB-H population, it was CTNNB1, but not FBXW7, mutations that significantly differed between the non-OM and OM groups, with the frequency of 23.5% (4/17) in the Non-OM and 80% (4/5) in the OM (p = 0.04) groups.