Document Detail

Re-occurrence of the CD20 molecule expression subsequent to CD20-negative relapse in diffuse large B-cell lymphoma.
MedLine Citation:
PMID:  17405748     Owner:  NLM     Status:  MEDLINE    
We report the first case of diffuse large B-cell lymphoma (DLBCL) of the stomach displaying CD20-negative relapse after rituximab-containing treatment and the re-appearance of CD20 expression at the second failure. The loss of CD20 expression in B-cell lymphomas relapsing after rituximab is a well-known phenomenon, but its actual impact in DLBCL is difficult to estimate. This paradigmatic case suggests that CD20-expression reappearance after purging of CD20-positive clones with rituximab might be an underestimated occurrence in B-cell lymphomas. Accordingly, every relapse, whenever possible, should be histologically assessed with diagnostic and immunophenotyping purposes.
A J Ferreri; G P Dognini; C Verona; C Patriarca; C Doglioni; M Ponzoni
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Haematologica     Volume:  92     ISSN:  1592-8721     ISO Abbreviation:  Haematologica     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2007-04-04     Completed Date:  2007-12-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0417435     Medline TA:  Haematologica     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  e1-2     Citation Subset:  IM    
Medical Oncology Unit, Dept. of Oncology, San Raffaele H Scientific Institute, Milan, Italy.
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MeSH Terms
Aged, 80 and over
Antibodies, Monoclonal / pharmacology,  therapeutic use*
Antigens, CD20 / biosynthesis*,  drug effects,  genetics
Antigens, Neoplasm / biosynthesis*,  drug effects,  genetics
Antineoplastic Combined Chemotherapy Protocols / therapeutic use
Combined Modality Therapy
Cyclophosphamide / administration & dosage
Epirubicin / administration & dosage
Fatal Outcome
Gene Expression Regulation, Neoplastic*
Immunologic Factors / pharmacology,  therapeutic use*
Lymphatic Irradiation
Lymphoma, Large B-Cell, Diffuse / metabolism*,  therapy
Neoplasm Recurrence, Local / metabolism*,  pathology,  therapy
Prednisone / administration & dosage
Stomach Neoplasms / metabolism*,  therapy
Vincristine / administration & dosage
Reg. No./Substance:
0/Antibodies, Monoclonal; 0/Antigens, CD20; 0/Antigens, Neoplasm; 0/Immunologic Factors; 0/rituximab; 50-18-0/Cyclophosphamide; 53-03-2/Prednisone; 56420-45-2/Epirubicin; 57-22-7/Vincristine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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