Follow-up by cytogenetic and fluorescence in situ hybridization analysis of allogeneic bone marrow transplantation in two children with Fanconi's anaemia in transformation
M. Ortega et al., Follow-up by cytogenetic and fluorescence in situ hybridization analysis of allogeneic bone marrow transplantation in two children with Fanconi's anaemia in transformation, BR J HAEM, 111(1), 2000, pp. 329-333
Results of bone marrow transplantation (BMT) in patients with Fanconi's ana
emia (FA) in transformation are very poor and only a few cases with favoura
ble outcome have been reported. Mie present the follow-up of two FA-myelody
splastic syndrome (MDS) patients with monosomy 7 and complex karyotype impl
icating chromosome 1. Both relapsed with acute myeloid leukaemia (AML) foll
owing an allogeneic BMT from an HLA-identical brother. The patients showed
clonal cytogenetic evolution coinciding with the leukaemic transformation,
In one patient, fluorescence in situ hybridization using X and Y chromosome
probes detected an increase of host cells before clinical relapse. Both pa
tients received a successful second allogeneic BMT from the same donor usin
g a more intensive treatment regimen and remain in clinical and cytogenetic
remission more than 3 years later.