{"title":"t(11;14) Plasma Cell Disorder Presents as a True Nonsecretory, Nonproducer Multiple Myeloma","authors":"Wei Chen , Mark McNamara , Young Kim , Qin Huang","doi":"10.3816/CLM.2009.n.048","DOIUrl":null,"url":null,"abstract":"<div><p>We describe an extremely rare case of so-called nonsecretory, nonproducer myeloma in an 80-year-old man who presented with weight loss and anemia. The patient's serum protein electrophoresis was negative for M protein spike, and quantitation of his immunoglobulin level was far below the normal range. The bone marrow biopsy showed a sheet-like diffuse plasmacytic infiltrate with essential absence of trilineage hematopoiesis. Flow cytometry analysis and immunohistochemical study demonstrated a strong CD38/CD138/immunoglobulin G heavy chain—positive plasma cell population but failed to detect either cytoplasmic κ or λ light chain expression. Chromosomal analysis and dual fluorescence in situ hybridization studies clearly demonstrated the presence of t(11;14)(q13;q32) translocation in the neoplastic plasma cells.</p></div>","PeriodicalId":100272,"journal":{"name":"Clinical Lymphoma and Myeloma","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2009-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3816/CLM.2009.n.048","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical Lymphoma and Myeloma","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1557919011702001","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
We describe an extremely rare case of so-called nonsecretory, nonproducer myeloma in an 80-year-old man who presented with weight loss and anemia. The patient's serum protein electrophoresis was negative for M protein spike, and quantitation of his immunoglobulin level was far below the normal range. The bone marrow biopsy showed a sheet-like diffuse plasmacytic infiltrate with essential absence of trilineage hematopoiesis. Flow cytometry analysis and immunohistochemical study demonstrated a strong CD38/CD138/immunoglobulin G heavy chain—positive plasma cell population but failed to detect either cytoplasmic κ or λ light chain expression. Chromosomal analysis and dual fluorescence in situ hybridization studies clearly demonstrated the presence of t(11;14)(q13;q32) translocation in the neoplastic plasma cells.
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