HEMONC: Granulocytic sarcoma of the stomach: relapse after hematopoietic stem-cell transplantation for chronic myeloid leukemia Granulocytic sarcoma of the stomach: relapse after hematopoietic stem-cell transplantation for chronic myeloid leukemia ================================================================================

Antonio Vaz Macedo, Izabela F. Freitas, Fábio M. Oliveira, Clarissa C. Resende, Cláudia Maria C. Mendes, Ana Karine Vieira, Lúcia P. Castro, Eduardo M. Rego, Nelma Cristina D. Clementino, Henrique Bittencourt

on 14/06/2010 09:44:00 Relapse of the underlying disease is the commonest cause of treatment failure after allogeneic hematopoietic stem cell transplantation (allo-HSCT) and is related to a poorer outcome.1-3 Most relapses occur within the first two years of transplant.2 Chronic myeloid leukemia (CML) in first chronic phase is among those with the lowest rates (10%-30%) of relapse.4 On rare occasions, an isolated extramedullary presentation is seen.2,3 In a large retrospective multicenter survey by Békassy et al, extramedullary relapse was reported in only 6 of 2753 (0.22%) grafted patients among the CML/myelodysplastic subgroup.3 In this report, we describe a rare presenting feature of post-transplant relapse of CML and discuss the main therapeutic alternatives in this setting.