PIK3CG and Ewing sarcoma: However, their involvement cannot be ruled out in certain cases: ERCC3 (patient 159; Ewing sarcoma), XPC (patient 151; ependymoma), FANCM (patient 149; neuroblastoma), PIK3CG (patient 111; lymphoma), RECQL4 (patient 89; leukemia), NBN (patient 78; atypical teratoid rhabdoid tumor), FANCL (patient 42; rhabdomyosarcoma) and CEP57 (patient 18; astrocytoma) (details on the variants can be found in Table 2 and File S3).