Detection of the t(11;14)(q13;q32) without CCND1/IGH fusion in a case of acute myeloid leukemia.
The t(11;14)(q13;q32) is a hallmark of mantle cell lymphoma. It has been found less frequently in other lymphoproliferative disorders, such as B-prolymphocytic leukemia, plasma cell leukemia, chronic lymphocytic leukemia, and multiple myeloma. Here, we describe a patient with acute myeloid leukemia (AML), categorized as M5b according to French-American-British classification, in which conventional cytogenetic analysis revealed a karyotype with t(11;14)(q13;q32). Fluorescence in situ hybridization analyses demonstrated no rearrangement of the immunoglobulin heavy-chain (IGH) (14q32) locus as well as of the cyclin D1 (CCND1) gene, suggesting that this is not the typical t(11;14) resulting from the CCND1/IGH fusion. The changes in the 11q13 region have been described in both myeloid and lymphoid neoplasm with different chromosomes serving as donors in translocation, but to the best of our knowledge, never with the chromosome 14.
Tarsitano
Marina
M
Service of Medical Genetics, Cardarelli Hospital, via Cardarelli 9, 80131 Naples, Italy. marinatarsitano@hotmail.com
Palmieri
Salvatore
S
Ferrara
Felicetto
F
Riccardi
Cira
C
Cavaliere
Maria Luigia
ML
Vicari
Laura
L
D001853:Bone Marrow / Q000473:pathology; D019938:Cyclin D1 / Q000235:genetics*; D005260:Female; D006801:Humans; D007143:Immunoglobulin Heavy Chains / Q000235:genetics*; D007621:Karyotyping; D015470:Leukemia, Myeloid, Acute / Q000235:genetics* / Q000473:pathology; D008875:Middle Aged; D014178:Translocation, Genetic
C530104:CCND1 protein, human; D007143:Immunoglobulin Heavy Chains; D019938:Cyclin D1