The indication for transplantation was based on the pathogenic heterozygous GATA2 nonsense variant, which is predicted to result in premature truncation of the GATA2 protein and is associated with MonoMAC syndrome, myelodysplastic syndrome (MDS), and acute myeloid leukemia (AML) predisposition. This evidence concerns the gene GATA2 and myelodysplastic syndrome.