Molecular cytogenetic characterization of an acquired minute supernumerary marker chromosome as the sole abnormality in a case clinically diagnosed as atypical Philadelphia-negative chronic myelogenous leukaemia.
Starke H, Raida M, Trifonov V, Clement JH, Loncarevic IF, Heller A, Bleck C, Nietzel A, Rubtsov N, Claussen U, Liehr T.
Institute of Human Genetics and Anthropology, Friedrich Schiller University, Jena, Germany.
A case of chronic myelogenous leukaemia (CML) in a 48-year-old man is reported. To the best of our knowledge, this is the first report of a Philadelphia-negative CML with an acquired small supernumerary marker chromosome (SMC) 11 as the sole abnormality. The derivative chromosome 11 was studied in detail using molecular cytogenetic methods; fluorescence in situ hybridization (FISH) using centromere- and region-specific probes for chromosome 11, microdissection, micro-comparative genomic hybridization (micro-CGH) and the recently developed multicolour banding (MCB) technique. The acquired SMC was determined to be a ring chromosome that can be described as r(11)(:p11.2-->q13.1:q14:).
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PMID: 11380412 [PubMed - indexed for MEDLINE]