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Plasma cell leukemia producing monoclonal immunoglobulin E. 2009

Yuzuru Takemura, and Masanobu Ikeda, and Kahori Kobayashi, and Yuji Nakazawa, and Yuichi Mori, and Toshimi Mitsuishi, and Hiroki Ishigame, and Fumiko Kameko, and Kiyotaka Fujita, and Ryo Ichinohasama
Department of Clinical Laboratories, Saku Central Hospital, 197 Usuda, Saku, Nagano, 384-0301, Japan. yuzurutakemura@nifty.com.

A 78-year-old male with lumbar pain and dim consciousness presented the clinical pictures of plasma cell leukemia (PCL) producing a large amount of monoclonal immunoglobulin E (IgE)/kappa protein. Laboratory investigation demonstrated an elevated serum calcium level and renal dysfunction. Systemic bone X-ray survey disclosed only a solitary osteolytic lesion. Circulating plasma cells demonstrated CD19(-)/CD56(-) and MPC-1(-)/CD49e(-)/CD45(+/-), the latter indicating the immature phenotype of the tumor cells. Bone marrow was occupied with immature, atypical plasma cells, of which cytoplasms were positive for IgE by direct immunofluorescence analysis. Chromosomes revealed a translocation of (11;14)(q13;q32), which is concordant with cyclinD1-protein overexpression by immunohistochemistry. He was treated with dexamethasone and vincristine, which somewhat improved the laboratory findings. He died of tumor progression after 4-month admission. The clinical and biological characteristics of IgE-producing PCL, a very rare type of plasma cell dyscrasia, are discussed, reviewing the past literature.

UI MeSH Term Description Entries
D007073 Immunoglobulin E An immunoglobulin associated with MAST CELLS. Overexpression has been associated with allergic hypersensitivity (HYPERSENSITIVITY, IMMEDIATE). IgE
D007145 Immunoglobulin kappa-Chains One of the types of light chains of the immunoglobulins with a molecular weight of approximately 22 kDa. Ig kappa Chains,Immunoglobulins, kappa-Chain,kappa-Immunoglobulin Light Chains,Immunoglobulin kappa-Chain,kappa-Chain Immunoglobulins,kappa-Immunoglobulin Light Chain,kappa-Immunoglobulin Subgroup VK-12,kappa-Immunoglobulin Subgroup VK-21,Chains, Ig kappa,Immunoglobulin kappa Chain,Immunoglobulin kappa Chains,Immunoglobulins, kappa Chain,Light Chain, kappa-Immunoglobulin,Light Chains, kappa-Immunoglobulin,kappa Chain Immunoglobulins,kappa Chains, Ig,kappa Immunoglobulin Light Chain,kappa Immunoglobulin Light Chains,kappa Immunoglobulin Subgroup VK 12,kappa Immunoglobulin Subgroup VK 21,kappa-Chain, Immunoglobulin,kappa-Chains, Immunoglobulin
D007952 Leukemia, Plasma Cell A rare, aggressive variant of MULTIPLE MYELOMA characterized by the circulation of excessive PLASMA CELLS in the peripheral blood. It can be a primary manifestation of multiple myeloma or develop as a terminal complication during the disease. Leukemia, Plasmacytic,Plasma Cell Leukemia,Plasmacytic Leukemia,Leukemias, Plasma Cell,Leukemias, Plasmacytic,Plasma Cell Leukemias,Plasmacytic Leukemias
D008297 Male Males
D001859 Bone Neoplasms Tumors or cancer located in bone tissue or specific BONES. Bone Cancer,Cancer of Bone,Cancer of the Bone,Neoplasms, Bone,Bone Neoplasm,Neoplasm, Bone
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D019085 Fluorescent Antibody Technique, Direct A form of fluorescent antibody technique utilizing a fluorochrome conjugated to an antibody, which is added directly to a tissue or cell suspension for the detection of a specific antigen. (Bennington, Saunders Dictionary & Encyclopedia of Laboratory Medicine and Technology, 1984) Immunofluorescence Antibody Test, Direct,Immunofluorescence Technique, Direct,Direct Fluorescent Antibody Technic,Direct Fluorescent Antibody Technique,Direct Immunofluorescence,Direct Immunofluorescence Assay,Fluorescent Antibody Technic, Direct,Immunofluorescence Technic, Direct,Assay, Direct Immunofluorescence,Assays, Direct Immunofluorescence,Direct Immunofluorescence Assays,Direct Immunofluorescence Technic,Direct Immunofluorescence Technics,Direct Immunofluorescence Technique,Direct Immunofluorescence Techniques,Direct Immunofluorescences,Immunofluorescence Assay, Direct,Immunofluorescence Assays, Direct,Immunofluorescence Technics, Direct,Immunofluorescence Techniques, Direct,Immunofluorescence, Direct,Immunofluorescences, Direct

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