Cryptic translocation of PML/RARA on 17q. A rare event in acute promyelocytic leukemia
- PMID: 12505266
- DOI: 10.1016/s0165-4608(02)00584-8
Cryptic translocation of PML/RARA on 17q. A rare event in acute promyelocytic leukemia
Abstract
Cryptic translocations in acute promyelocytic leukemia are rare. Usually the gene fusion PML/RARA is located on chromosome 15. Combined cytogenetic, fluorescence in situ hybridization (FISH), and molecular (polymerase chain reaction [PCR]) analysis were employed for the diagnosis and precise localization of the fusion gene. Conventional cytogenetics showed a normal karyotype; PCR showed a typical PML/RARA rearrangement in exon 1. FISH analysis revealed that a submicroscopic part of chromosome 15 had been inserted into 17q. This case adds further information on alternative ways of rearrangement of the PML/RARA genes, possibly correlated with all-trans retinoic acid resistance.
Comment in
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Rapid diagnosis of acute promyelocytic leukemia (PML): applicability of flow cytometry and PML protein immunofluorescence.Cancer Genet Cytogenet. 2004 Jan 15;148(2):176-7. doi: 10.1016/s0165-4608(03)00241-3. Cancer Genet Cytogenet. 2004. PMID: 14734236 No abstract available.
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