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Huang L, Wang SA, DiNardo C, Li S, Hu S, Xu J, Zhou W, Goswami M, Medeiros LJ, Tang G. Tetraploidy/near-tetraploidy acute myeloid leukemia. Leuk Res 2016; 53:20-27. [PMID: 27951415 DOI: 10.1016/j.leukres.2016.11.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 11/27/2016] [Accepted: 11/30/2016] [Indexed: 10/20/2022]
Abstract
A tetraploid/near tetraploid (T/NT) karyotype is a rare finding in acute myeloid leukemia (AML). Here we report 38 AML patients with a T/NT karyotype, including 26 men and 12 women with a median age of 65 years. T/NT karyotype was detected at initial diagnosis of AML in 16 patients, and acquired during the course of disease in 22 patients. All patients showed large blasts with frequent prominent nucleoli, cytoplasmic vacuoles and/or inclusions, nuclear irregularity and/or budding. Eleven patients had a non-complex and 27 had a complex T/NT karyotype; 21 patients also had pseudodiploid and/or triploid clones. After T/NT karyotype detection, 32 patients received chemotherapy and 10 also received stem cell transplant. After a median of 6.2 months follow-up, 32 patients died of disease or complications, 5 were alive with complete remission, and 1 alive with persistent AML. Median overall survival (OS) was 5 months. Patients with a non-complex T/NT karyotype had a significantly superior OS compared to those with a complex T/NT karyotype (10.7 vs. 3.4 months, p=0.0280). We conclude that T/NT karyotype in AML is often associated with distinctive morphologic features and conveys generally poor outcomes. Distinction of complex versus non-complex T/NT karyotype provides further prognostic information.
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Affiliation(s)
- Lanshan Huang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Sa A Wang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Courtney DiNardo
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Shaoying Li
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Shimin Hu
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jie Xu
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Wenli Zhou
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Maitrayee Goswami
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - L Jeffrey Medeiros
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Guilin Tang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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Kim BR, Kim JE, Woo KS, Kim KH, Kim JM, Lee S, Shaffer LG, Han JY. A case of near-triploidy in myelodysplastic syndrome with del(5q) combined with del(1p) and del(13q). Ann Lab Med 2012; 32:294-7. [PMID: 22779072 PMCID: PMC3384812 DOI: 10.3343/alm.2012.32.4.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 01/09/2012] [Accepted: 02/17/2012] [Indexed: 11/29/2022] Open
Abstract
Numerical and structural chromosomal abnormalities are common in hematological malignancies. Near-triploidy (58-80 chromosomes) is a numerical abnormality observed in 3% of adult cases of acute lymphoblastic leukemia. Near-triploidy is rare in myeloid lineage hematologic malignancies and compared to near-triploidy in lymphoid malignancies, near-triploidy in myeloid malignancies is associated with poor outcomes. Few studies on near-triploidy in myelodysplastic syndrome (MDS) have been reported, and the clinicopathologic significance of this condition is still unclear. Here, we report a novel case of MDS with near-triploidy and multiple structural chromosomal abnormalities: del(5q) combined with del(1p) and del(13q). These abnormalities were detected by cytogenetic analysis with array comparative genomic hybridization (CGH). Our results suggest that array CGH can be a useful tool for detecting chromosomal abnormalities in patients with MDS.
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Affiliation(s)
- Bo-Ram Kim
- Department of Laboratory Medicine, Dong-A University College of Medicine, Busan, Korea
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Chun K, Hagemeijer A, Iqbal A, Slovak ML. Implementation of standardized international karyotype scoring practices is needed to provide uniform and systematic evaluation for patients with myelodysplastic syndrome using IPSS criteria: An International Working Group on MDS Cytogenetics Study. Leuk Res 2009; 34:160-5. [PMID: 19665225 DOI: 10.1016/j.leukres.2009.07.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Revised: 07/03/2009] [Accepted: 07/04/2009] [Indexed: 11/15/2022]
Abstract
Karyotype status and complexity are key components of the IPSS; however, emerging data suggest the use of cytogenetics at disease presentation is not applied uniformly among MDS patients. To investigate the degree of consistency of scoring karyotypes, the International Working Group on MDS Cytogenetics (IWGMC) conducted a survey of 32 abnormal karyotype challenges carried out in two phases: (a) an initial survey without any specified karyotype counting guidelines and (b) a second survey conducted after the development of IWGMC consensus guidelines for scoring karyotype complexity. Results indicate that IWGMC guidelines were simple and clear for the cytogeneticists in scoring karyotype complexity, but not as clear for the hematologists. We propose an immediate need for standardized international karyotype counting practices and a corresponding IPSS cytogenetic risk that can be incorporated into the cytogenetics reports of all newly diagnosed MDS patients.
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Affiliation(s)
- Kathy Chun
- Genetics Program, North York General Hospital, 4001 Leslie St. 3SE, Toronto, Ontario M2K 1E1, Canada.
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