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  Indian J Med Microbiol
 

Figure 2: Interphase fluorescence in situ hybridization signal patterns using tricolor dual fusion probe. A 43-year-old male diagnosed with chronic myelogenous leukemia-chronic phase and progressed to blast crisis at the 72nd month of imatinib therapy. Red arrow: Normal cell; Yellow arrow: Philadelphia-positive cell with loss of residual Abelson murine leukemia viral oncogene homolog 1 on der(9); White arrow: Random signal overlap

Figure 2: Interphase fluorescence <i>in situ</i> hybridization signal patterns using tricolor dual fusion probe. A 43-year-old male diagnosed with chronic myelogenous leukemia-chronic phase and progressed to blast crisis at the 72<sup>nd</sup> month of imatinib therapy. Red arrow: Normal cell; Yellow arrow: Philadelphia-positive cell with loss of residual Abelson murine leukemia viral oncogene homolog 1 on der(9); White arrow: Random signal overlap