AARS2 and Leukoencephalopathy: Since first identified in 2014, only 19 AARS2‐related leukoencephalopathy cases have been reported in English literature until now (Dallabona et al., 2014; Dong et al., 2018; Hamatani et al., 2016; Lee et al., 2017; Peragallo, Keller, van der Knaap, Soares, & Shankar, 2018; Szpisjak et al., 2017; Taglia et al., 2018).