Abstract
To investigate the clinical and laboratory features of acute myeloid leukemia (AML) with t(11;12)(p15;q13) translocation. Two cases of AML with t(11;12)(p15;q13) translocation were reported and the related literatures were reviewed. The diagnosis of AML-M3 was supported by morphological, cytochemical staining and electron microscope tests. A rare t(11;12)(p15;q13) translocation, but not classical t(15;17)(q22;q12) translocation and PML- RARα fusion gene, was detected in both cases. Both of the patients were refractory to differentiation induction therapy such as retinoic acid and arsenic trioxide. AML is a group of heterogeneous disease derived from hematopoietic stem cell. Cytogenetic characteristic is important for diagnosis, prognosis stratification and therapy selection. Because of the heterogeneity of clinical and molecular features, it is unsuitable to classify AML with t(11;12)(p15;q13) as AML with recurrent cytogenetic aberration. This group of disease may benefit from allogeneic hematopoietic stem cell transplantation.
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