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A comparative analysis of cutaneous marginal zone lymphoma and cutaneous chronic lymphocytic leukemia.
MedLine Citation:
PMID:  22257836     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The morphologic distinction between cutaneous marginal zone lymphoma (CMZL) and secondary cutaneous involvement by B-cell chronic lymphocytic leukemia (B-CLL) can be difficult. Both entities can show very similar architectural patterns of involvement in the skin and not uncommonly, the skin can be the first site of presentation of B-CLL in the elderly. We reviewed biopsies of 13 patients with cutaneous B-CLL and 14 patients with CMZL to compare their histologic and immunohistochemical features. CMZL and cutaneous B-CLL both predominantly exhibited a nodular pattern of skin involvement (9 of 13 B-CLL, 9 of 14 CMZL) with a minority of cases demonstrating a diffuse pattern (4 of 13 B-CLL, 4 of 14 CMZL). Although reactive germinal centers (12 of 14 cases) and plasma cells (10 of 14 cases) were seen more often in CMZL, plasma cells were also observed in cases of B-CLL (4 of 13). The lesional cells of B-CLL expressed CD79, CD5, CD23, and CD43, although CMZL did not express CD5 or CD43. Although we noted light chain restriction in 13 of 14 cases of CMZL cases, we also observed light chain restriction in 4 of 13 cases of B-CLL. Our results indicate that CMZL and B-CLL can be morphologically similar and both may show light chain restriction. Complete immunophenotyping is necessary to ensure that all cases are correctly classified.
Authors:
Cheryl Levin; Neda Mirzamani; Jeffrey Zwerner; Youn Kim; Erich J Schwartz; Uma Sundram
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American Journal of dermatopathology     Volume:  34     ISSN:  1533-0311     ISO Abbreviation:  Am J Dermatopathol     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-01-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7911005     Medline TA:  Am J Dermatopathol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  18-23     Citation Subset:  IM    
Affiliation:
From the *Departments of Pathology; †Dermatology, Stanford University School of Medicine, Stanford, CA; and ‡Department of Dermatology, Vanderbilt University, Nashville, TN.
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