PMID- 15899392 OWN - NLM STAT- MEDLINE DCOM- 20050705 LR - 20190816 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 159 IP - 2 DP - 2005 Jun TI - Two cases of acute myeloid leukemia with t(11;17) associated with varying morphology and immunophenotype: rearrangement of the MLL gene and a region proximal to the RARalpha gene. PG - 168-73 AB - This report describes 2 cases of acute myeloid leukemia (AML), which based on the WHO classification would be classified as AML with an 11q23 (MLL) abnormality, but with contrasting morphologic and immunophenotypic profiles. One case had monocytic features (morphologically and immunophenotypically) with a t(11;17)(q23;q21), a previously identified variant translocation in acute promyelocytic leukemia (APL). The second case had morphologic and immunophenotypic features of APL associated with a t(11;17)(q23;q25). In both cases, fluorescence-in-situ hybridization (FISH) analysis demonstrated that the 11q23 breakpoint involved the MLL gene, but RARalpha was not involved in the 17q breakpoints. These cases illustrate the importance of FISH analysis to confirm the presence of a particular recurring rearrangement. FAU - Kang, Loveleen C AU - Kang LC AD - Division of Hematopathology, Department of Pathology and Laboratory Medicine, Campus Box 7525, University of North Carolina, Chapel Hill, NC 27599-7525, USA. FAU - Smith, Scott V AU - Smith SV FAU - Kaiser-Rogers, Kathleen AU - Kaiser-Rogers K FAU - Rao, Kathleen AU - Rao K FAU - Dunphy, Cherie H AU - Dunphy CH LA - eng PT - Case Reports PT - Journal Article PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 RN - 0 (DNA-Binding Proteins) RN - 0 (KMT2A protein, human) RN - 0 (RARA protein, human) RN - 0 (Receptors, Retinoic Acid) RN - 0 (Retinoic Acid Receptor alpha) RN - 0 (Transcription Factors) RN - 149025-06-9 (Myeloid-Lymphoid Leukemia Protein) RN - EC 2.1.1.43 (Histone-Lysine N-Methyltransferase) SB - IM MH - Acute Disease MH - *Chromosomes, Human, Pair 11 MH - *Chromosomes, Human, Pair 17 MH - DNA-Binding Proteins/*genetics MH - Female MH - Gene Rearrangement MH - Histone-Lysine N-Methyltransferase MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Leukemia, Myeloid/*genetics/pathology MH - Male MH - Middle Aged MH - Myeloid-Lymphoid Leukemia Protein MH - Proto-Oncogenes/*genetics MH - Receptors, Retinoic Acid/*genetics MH - Retinoic Acid Receptor alpha MH - Transcription Factors/*genetics MH - *Translocation, Genetic EDAT- 2005/05/19 09:00 MHDA- 2005/07/06 09:00 CRDT- 2005/05/19 09:00 PHST- 2004/08/06 00:00 [received] PHST- 2004/10/14 00:00 [revised] PHST- 2004/10/15 00:00 [accepted] PHST- 2005/05/19 09:00 [pubmed] PHST- 2005/07/06 09:00 [medline] PHST- 2005/05/19 09:00 [entrez] AID - S0165-4608(04)00506-0 [pii] AID - 10.1016/j.cancergencyto.2004.10.009 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2005 Jun;159(2):168-73. doi: 10.1016/j.cancergencyto.2004.10.009.