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- Title
Interphase FISH for BCR-ABL1 rearrangement on neutrophils: A decisive tool to discriminate a lymphoid blast crisis of chronic myeloid leukemia from a de novo BCR-ABL1 positive acute lymphoblastic leukemia.
- Authors
Balducci, Estelle; Loosveld, Marie; Rahal, Ilhem; Boudjarane, John; Alazard, Emilie; Missirian, Chantal; Lafage‐Pochitaloff, Marina; Michel, Gérard; Zattara, Hélène; Lafage-Pochitaloff, Marina
- Abstract
Discrimination between lymphoid blast crisis of chronic myeloid leukemia (CML) and de novo BCR-ABL1 positive acute lymphoblastic leukemia (ALL) represents a diagnostic challenge because this distinction has a major incidence on the management of patients. Here, we report an uncommon pediatric case of ALL with cryptic ins(22;9)(q11;q34q34) and p190-type BCR-ABL1 transcript. We performed interphase fluorescence in situ hybridization (FISH) for BCR-ABL1 rearrangement on blood neutrophils, which was positive consistent with the diagnosis of lymphoid blast crisis of CML. This case illustrates the major interest of interphase FISH for BCR-ABL1 rearrangement on blood neutrophils as a decisive method to discriminate a lymphoid blast crisis of CML from a de novo BCR-ABL1 positive ALL.
- Publication
Hematological Oncology, 2018, Vol 36, Issue 1, p344
- ISSN
0278-0232
- Publication type
case study
- DOI
10.1002/hon.2416