Anaplastic lymphoma kinase-positive large B-cell lymphoma with complex karyotype and novel ALK gene rearrangements. 2011

Min Shi, and Patricia Minehart Miron, and Lloyd Hutchinson, and Bruce A Woda, and Rajneesh Nath, and Jan Cerny, and Hongbo Yu
Department of Pathology and Department of Hospital Laboratories, UMass Memorial Medical Center and University of Massachusetts Medical School, Worcester, MA 01605, USA.

Anaplastic lymphoma kinase-positive large B-cell lymphoma is a rare non-Hodgkin lymphoma that exhibits a characteristic immunoblastic/plasmablastic morphology and is frequently associated with t(2;17)(p23;q23) and expression of Clathrin-anaplastic lymphoma kinase fusion protein. Here, we report a refractory anaplastic lymphoma kinase-positive large B-cell lymphoma in a 49-year-old human immunodeficiency virus-positive man. The neoplastic cells expressed CD138, epithelial membrane antigen, CD45, and perforin, and showed a strong granular cytoplasmic anaplastic lymphoma kinase staining pattern. Conventional chromosome analysis revealed a clone with multiple anomalies and a chromosome count of 76 to 79. Fluorescence in situ hybridization studies showed 5 copies of the ALK gene with 2 intact signals and 3 signals resulting from 2 independent, previously unreported, rearrangements. One rearrangement, seen in 2 copies, involved translocation of ALK sequences to chromosome Xq21. The second rearrangement involved translocation of ALK sequences to chromosome 12q24.1. This case broadens the cytogenetic alterations in anaplastic lymphoma kinase-positive large B-cell lymphoma, and it also demonstrates the high genetic instability of this tumor.

UI MeSH Term Description Entries
D007621 Karyotyping Mapping of the KARYOTYPE of a cell. Karyotype Analysis Methods,Analysis Method, Karyotype,Analysis Methods, Karyotype,Karyotype Analysis Method,Karyotypings,Method, Karyotype Analysis,Methods, Karyotype Analysis
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000077548 Anaplastic Lymphoma Kinase A receptor tyrosine kinase that is essential for development and differentiation of the nervous system in response to secreted growth factors. It phosphorylates the first tyrosine of the Y-x-x-x-Y-Y motif of targets that include PROTO-ONCOGENE PROTEINS C-CBL; INSULIN RECEPTOR SUBSTRATE-1; and MITOGEN-ACTIVATED PROTEIN KINASES, leading to activation of the MAPK signaling pathway and cell proliferation. A chromosomal aberration involving the ALK gene results in its constitutive expression in some cases of NON-HODGKIN LYMPHOMA. ALK Kinase,ALK Tyrosine Kinase Receptor,Anaplastic Lymphoma Receptor Tyrosine Kinase,CD246 Antigen,NPM-ALK,Nucleophosmin-Anaplastic Lymphoma Kinase,Nucleophosmin Anaplastic Lymphoma Kinase
D015321 Gene Rearrangement The ordered rearrangement of gene regions by DNA recombination such as that which occurs normally during development. DNA Rearrangement,DNA Rearrangements,Gene Rearrangements,Rearrangement, DNA,Rearrangement, Gene,Rearrangements, DNA,Rearrangements, Gene
D015658 HIV Infections Includes the spectrum of human immunodeficiency virus infections that range from asymptomatic seropositivity, thru AIDS-related complex (ARC), to acquired immunodeficiency syndrome (AIDS). HTLV-III Infections,HTLV-III-LAV Infections,T-Lymphotropic Virus Type III Infections, Human,HIV Coinfection,Coinfection, HIV,Coinfections, HIV,HIV Coinfections,HIV Infection,HTLV III Infections,HTLV III LAV Infections,HTLV-III Infection,HTLV-III-LAV Infection,Infection, HIV,Infection, HTLV-III,Infection, HTLV-III-LAV,Infections, HIV,Infections, HTLV-III,Infections, HTLV-III-LAV,T Lymphotropic Virus Type III Infections, Human
D016130 Immunophenotyping Process of classifying cells of the immune system based on structural and functional differences. The process is commonly used to analyze and sort T-lymphocytes into subsets based on CD antigens by the technique of flow cytometry. Lymphocyte Immunophenotyping,Lymphocyte Subtyping,Immunologic Subtyping,Immunologic Subtypings,Lymphocyte Phenotyping,Subtyping, Immunologic,Subtypings, Immunologic,Immunophenotyping, Lymphocyte,Immunophenotypings,Immunophenotypings, Lymphocyte,Lymphocyte Immunophenotypings,Lymphocyte Phenotypings,Lymphocyte Subtypings,Phenotyping, Lymphocyte,Phenotypings, Lymphocyte,Subtyping, Lymphocyte,Subtypings, Lymphocyte
D016403 Lymphoma, Large B-Cell, Diffuse Malignant lymphoma composed of large B lymphoid cells whose nuclear size can exceed normal macrophage nuclei, or more than twice the size of a normal lymphocyte. The pattern is predominantly diffuse. Most of these lymphomas represent the malignant counterpart of B-lymphocytes at midstage in the process of differentiation. Diffuse Large B-Cell Lymphoma,Diffuse, Large B-Cell, Lymphoma,Histiocytic Lymphoma, Diffuse,Lymphoma, Histiocytic, Diffuse,Diffuse Large-Cell Lymphoma,Histiocytic Lymphoma,Large Lymphoid Lymphoma, Diffuse,Large-Cell Lymphoma, Diffuse,Lymphoma, Diffuse Large-Cell,Lymphoma, Histiocytic,Lymphoma, Large Cell, Diffuse,Lymphoma, Large Lymphoid, Diffuse,Lymphoma, Large-Cell, Diffuse,Diffuse Histiocytic Lymphoma,Diffuse Histiocytic Lymphomas,Diffuse Large B Cell Lymphoma,Diffuse Large Cell Lymphoma,Diffuse Large-Cell Lymphomas,Histiocytic Lymphomas,Large Cell Lymphoma, Diffuse,Lymphoma, Diffuse Histiocytic,Lymphoma, Diffuse Large Cell
D020794 Receptor Protein-Tyrosine Kinases A class of cellular receptors that have an intrinsic PROTEIN-TYROSINE KINASE activity. PTK Receptor,Receptors, Protein-Tyrosine Kinase,Tyrosine Kinase Linked Receptor,Tyrosine Kinase Linked Receptors,Tyrosine Kinase Receptor,Tyrosine Kinase Receptors,PTK Receptors,Protein-Tyrosine Kinase Receptor,Receptor Protein-Tyrosine Kinase,Kinase Receptor, Tyrosine,Kinase, Receptor Protein-Tyrosine,Kinases, Receptor Protein-Tyrosine,Protein-Tyrosine Kinase Receptors,Protein-Tyrosine Kinase, Receptor,Protein-Tyrosine Kinases, Receptor,Receptor Protein Tyrosine Kinase,Receptor Protein Tyrosine Kinases,Receptor, PTK,Receptor, Protein-Tyrosine Kinase,Receptor, Tyrosine Kinase,Receptors, PTK,Receptors, Protein Tyrosine Kinase

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