Furthermore, due to facial dysmorphism, a genetic disorder was suspected, and a molecular genetic test for the causal genes of RASopathies (PTPN11, SOS1, RAF1, RIT1, HRAS, KRAS, NRAS, BRAF, MAP2K1, MAP2K2, CBL, RRAS, and SHOC2) was performed. Here, MAP2K2 is linked to hereditary disease.