The BRAF c.1796C>G (p.Thr599Arg) variant has been reported in ClinVar as pathogenic, including an expert panel pathogenic classification, and is also represented in curated cancer variant resources.1 This variant is absent from gnomAD v2.1 and gnomAD v4.1, which supports rarity in population reference datasets.2 In approved functional studies, this variant was classified as pathogenic in both MEK activation and ERK activation assays, supporting abnormal MAPK pathway signaling consistent with the disease mechanism.3 In silico evidence does not meet the BRAF RASopathy thresholds for PP3 or BP4 because REVEL is 0.359, SpliceAI predicts no significant splice impact with a maximum delta score of 0.00, and BayesDel is 0.308415.4