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The many faces of marginal zone lymphoma.
- Source :
-
Hematology. American Society of Hematology. Education Program [Hematology Am Soc Hematol Educ Program] 2012; Vol. 2012, pp. 426-32. - Publication Year :
- 2012
-
Abstract
- Indolent B-cell lymphomas that are supposed to derive from the marginal zone (marginal zone lymphomas [MZLs]) include 3 specific entities: extranodal marginal zone lymphoma (EMZL) or mucosa-associated lymphatic tissue (MALT) lymphoma, splenic MZL (SMZL), and nodal MZL (NMZL). The clinical and molecular characteristics are different for each entity, with some shared phenotypic and genetic features. EMZL is the most common entity, accounting for approximately 70% of all MZLs. These neoplasms can arise at virtually any extranodal site and are commonly associated with chronic antigenic stimulation either as a result of infection (eg, Helicobacter pylori in the stomach) or autoimmune disease (eg, Sjögren syndrome and salivary glands). Several chromosomal translocations were also identified in EMZL, accounting in the aggregate for approximately one-third of all cases. SMZL accounts for approximately 20% of all MZLs. Patients typically present with an enlarged spleen and involvement of abdominal lymph nodes and BM. Approximately 40%-50% of SMZLs are associated with deletions of chromosome 7q. NMZL is the less common entity, representing approximately 10% of all MZLs. Patients with NMZL, by definition, have lymph node-based disease without involvement of the spleen or extranodal sites. The molecular pathogenesis of NMZL is still unknown.
- Subjects :
- Adult
Aged
Autoimmunity
Chromosome Aberrations
Cytogenetics
Female
Humans
Immunotherapy methods
Lymphoma, B-Cell, Marginal Zone immunology
Lymphoma, B-Cell, Marginal Zone therapy
Male
Medical Oncology methods
Middle Aged
Prognosis
Splenic Neoplasms immunology
Splenic Neoplasms therapy
Stomach Neoplasms immunology
Stomach Neoplasms therapy
Time Factors
Translocation, Genetic
Treatment Outcome
Lymphoma, B-Cell, Marginal Zone diagnosis
Splenic Neoplasms diagnosis
Stomach Neoplasms diagnosis
Subjects
Details
- Language :
- English
- ISSN :
- 1520-4383
- Volume :
- 2012
- Database :
- MEDLINE
- Journal :
- Hematology. American Society of Hematology. Education Program
- Publication Type :
- Academic Journal
- Accession number :
- 23233614
- Full Text :
- https://doi.org/10.1182/asheducation-2012.1.426