MGAT1 and autoimmune lymphoproliferative syndrome: While the majority of cases (6/8) showed “not consistent” or “not typical” results, two patients (Pts 60 and 61 in Table 3) showed “suspicious for ALPS” results, and both of them were hemizygous for pathogenic variants in MGAT1. These findings underscore the significance of genetic testing in facilitating the accurate diagnosis of ALPS.