MVK and hemophagocytic syndrome: Two more defects have been identified in genes not related to the familial HLH: a novel predicted pathogenic MAGT1 c.247delA, p.Arg83Aspfs*3 hemizygous deletion identified in a male diagnosed with XMEN and previously described pathogenic homozygous MVK c.1162C > T p.Arg388* nonsense variant in a female.