Fanconi's anaemia presenting as acute myeloid leukaemia in adulthood

We describe a 28-year-old male patient who presented with apparently de novo acute myeloid leukaemia (AML) who was subsequently found to have Fanconi's anaemia (FA). The gene for complementation group A (FAA) has recently been localized to chromosome 16q24.3 and utilizing genetic markers closely linked to this locus we were able to conclude that this patient was likely to belong to complementation group A. FA presenting as AML is an exceptionally rare event and all previously described cases have occurred in patients less than 21 years of age. We conclude that the diagnosis of FA should always be considered in younger patients presenting with AML. It is important that the correct diagnosis is made in these individuals because the administration of conventional chemotherapy may well have devastating consequences for them. Correlations between the specific mutations causing FA and clinical phenotypes are likely to become apparent as more genetic analyses are performed in this group of patients.