Title |
Simultaneous deletion of 3′ETV6 and 5′EWSR1 genes in blastic plasmacytoid dendritic cell neoplasm: case report and literature review
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Published in |
Molecular Cytogenetics, February 2016
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DOI | 10.1186/s13039-016-0232-1 |
Pubmed ID | |
Authors |
Zhenya Tang, Guilin Tang, Sa A. Wang, Xinyan Lu, Ken H. Young, Carlos E. Bueso-Ramos, Yesid Alvarado, L. Jeffrey Medeiros, Joseph D. Khoury |
Abstract |
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematologic malignancy. Based on literature reports of limited cases, over 50 % of BPDCN have chromosomal abnormalities, but no single chromosomal change has been identified as diagnostic of this entity. In this report, we present a case of BPDCN with complicated chromosomal abnormalities involving chromosomes 12 and 22 and resulting in a simultaneous partial deletion of ETV6 and EWSR1. Notably, these aberrations were identified in bone marrow myeloid precursors in the absence of bone marrow involvement by BPDCN. Analysis of 46 BPDCN cases with abnormal karyotypes (45 from literature reports plus this case) showed that 12p- is one of the most common structural aberrations in BPDCN. The ETV6 and CDKN1B on 12p deserve further investigations as potential markers of BPDCN. |
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