PMID- 14703693 OWN - NLM STAT- MEDLINE DCOM- 20040121 LR - 20190911 IS - 0902-4441 (Print) IS - 0902-4441 (Linking) VI - 71 IP - 6 DP - 2003 Dec TI - Structural aberrations of chromosomes 17 and 12 in chronic B-cell disorders. PG - 433-8 AB - OBJECTIVES: Genomic aberrations can now be identified in approximately 80% of chronic lymphocytic leukemia, small lymphocytic lymphoma (CLL/SLL) patients. In the present study, four new structural changes involving chromosomes 17 and 12 in CLL/SLL patients are described. METHODS: Five patients were selected for inclusion in the present report among a total of 92 cases with diagnosis of CLL/SLL. Cytogenetic studies and fluorescence in situ hybridization (FISH) analysis to detect some of the most frequent cryptic aberrations occurring in CLL/SLL patients were performed. Clinical studies are also described. RESULTS: Four cases showed structural rearrangements of chromosome 17. A psu dic(17;2)(p11.2;p21), leading to p53 deletion, was observed in a patient who developed a mixed cellularity Hodgkin's disease coexisting with the CLL/SLL in the same lymph node. Epstein Barr virus was detected in the Reed-Sternberg cells. Two cases had a balanced translocation t(2;17)(p21;q23). Both patients showed trisomy 12 and clonal evolution and one of them also had 11q deletion. In addition, a der(17)t(12;17)(q13;q25) as a part of a complex karyotype, and a complex translocation t(5;12;19) (q15;p11;q13) were also found. Four patients had an adverse clinical outcome and died because of disease progression. CONCLUSIONS: Four unreported nonrandom chromosome aberrations in CLL/SLL patients, one of them who might represent a new recurrent abnormality, are described. These uncommon abnormalities, mostly associated with evolving disease, may have implications for the understanding of genetic events associated with disease progression in this pathology. FAU - Cerretini, Roxana AU - Cerretini R AD - Department of Genetica, Academia Nacional de Medicina, Buenos Aires, Argentina. rcerretini@hotmail.com FAU - Chena, Christian AU - Chena C FAU - Giere, Isabel AU - Giere I FAU - Sarmiento, Marcela AU - Sarmiento M FAU - Arrossagaray, Guillermo AU - Arrossagaray G FAU - Rodriguez, Andrea AU - Rodriguez A FAU - Perez Bianco, Raul AU - Perez Bianco R FAU - de Dios Soler, Marcela AU - de Dios Soler M FAU - Narbaitz, Marina AU - Narbaitz M FAU - Slavutsky, Irma AU - Slavutsky I LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Eur J Haematol JT - European journal of haematology JID - 8703985 SB - IM MH - Aged MH - Biopsy MH - Bone Marrow/ultrastructure MH - *Chromosome Aberrations MH - Chromosomes, Human, Pair 12/*genetics MH - Chromosomes, Human, Pair 17/*genetics MH - Female MH - Gene Deletion MH - Humans MH - In Situ Hybridization MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Leukemia, Lymphocytic, Chronic, B-Cell/*genetics MH - Lymph Nodes/ultrastructure MH - Male MH - Middle Aged MH - Translocation, Genetic MH - Trisomy EDAT- 2004/01/06 05:00 MHDA- 2004/01/22 05:00 CRDT- 2004/01/06 05:00 PHST- 2004/01/06 05:00 [pubmed] PHST- 2004/01/22 05:00 [medline] PHST- 2004/01/06 05:00 [entrez] AID - 10.1046/j.0902-4441.2003.00163.x [doi] PST - ppublish SO - Eur J Haematol. 2003 Dec;71(6):433-8. doi: 10.1046/j.0902-4441.2003.00163.x.