dup(1)(q21q32) as a sole cytogenetic event is associated to a leukemic transformation in myelodysplastic syndromes |
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Authors: | Alfaro Ramona Pérez-Granero Angeles Durán Maria Antonia Besalduch Joan Rosell Jordi Bernués Marta |
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Affiliation: | Department of Genetics, Hospital Universitari Son Dureta, Andrea Doria 55, 07014 Palma de Mallorca, Illes Balears, Spain. |
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Abstract: | Duplication of the long arm of chromosome 1 (1q) has been detected accompanied with other chromosome abnormalities in Myelodysplastic Syndromes (MDS). However, as a sole karyotypic change, it is rarely observed. We present here two patients affected of a MDS that showed a dup(1)(q21q32) as a sole cytogenetic change in their bone marrow cells. Complementary methodologies confirmed the duplication of chromosome 1q and, did not show additional cryptic chromosome abnormalities. One patient acquired a secondary trisomy 8 and the other one progressed toward an acute leukemia with no additional cytogenetic alterations. |
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