Document Detail

Is CD20 positive plasma cell myeloma a unique clinicopathological entity? A study of 40 cases and review of the literature.
MedLine Citation:
PMID:  22935987     Owner:  NLM     Status:  Publisher    
AIMS:: A number of clinicopathological features have been attributed to the CD20 positive subset of plasma cell myeloma (PCM). CD20 is an appealing therapeutic target given the success with monoclonal antibody regimens in a spectrum of B cell lymphomas. To date, a small number of reports have described CD20 PCM as a unique subset, and these are not conclusive, especially taking into consideration reporting bias. This study aims to further identify the clinicopathological features of CD20 PCM. METHODS:: A retrospective analysis of all newly diagnosed PCM between 2003 and 2010 was undertaken. Trephine material was retrieved and reviewed for CD20, and for positive cases an extended immunohistochemical (IHC) panel including cyclin D1 was subsequently performed. RESULTS:: The review of our 40 cases and those described in the literature demonstrated that these are heterogeneous with regard to clinical features, morphology, biochemical features, immunophenotype, and cytogenetics. CONCLUSION:: Based on our study and review of the literature, CD20 PCM cases represent a heterogeneous disease and not a unique clinicopathological entity.
George Grigoriadis; Michael Gilbertson; Neil Came; David Westerman; Frank Fellepa; Nick Jene; Peter Chapple; Surender Juneja
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-29
Journal Detail:
Title:  Pathology     Volume:  -     ISSN:  1465-3931     ISO Abbreviation:  Pathology     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0175411     Medline TA:  Pathology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
*Department of Diagnostic Haematology, The Royal Melbourne Hospital, Parkville †Department of Clinical Haematology, Monash University, Melbourne ‡Peter MacCallum Cancer Centre, East Melbourne §The University of Melbourne, Parkville, Victoria, Australia.
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