Nodal marginal zone B-cell lymphoma: a clinicopathologic study of 10 cases / 中华病理学杂志
Chinese Journal of Pathology
;
(12): 529-533, 2007.
Article
Dans Chinois
| WPRIM
| ID: wpr-347740
ABSTRACT
<p><b>OBJECTIVE</b>To study the morphologic features, immunophenotype, differential diagnosis and prognosis of nodal marginal zone B-cell lymphoma (NMZL).</p><p><b>METHODS</b>Light microscopic examination and immunohistochemical study were carried out in 10 cases of NMZL. Seven of which had follow-up information available.</p><p><b>RESULTS</b>All cases presented with good performance status at the time of diagnosis. Amongst the 7 cases with follow-up information available, most (6/7) were in advanced clinical stage (stage II to III). The one-year survival rate was 67%. A vaguely nodular growth pattern was observed in most cases of NMZL (5/10). The lymphoma was composed predominantly of atypical lymphoid cells resembling centrocytes (7/10). A predominance of monocytoid B-cell (2/10) or small lymphocytic (1/10) morphology was rare. Instead, the presence of a minor component of monocytoid B cells was not uncommon (5/10). Plasmacytoid or plasmacytic cells were also frequently found (8/10). The proliferation index ranged from 5% to 50%. Follicular dendritic cells appeared atrophic in 7 cases and variably hyperplasic in 3 cases.</p><p><b>CONCLUSIONS</b>Primary NMZL is rare. It has a unique growth pattern and most cases are composed predominantly of cells resembling centrocytes. Differential diagnosis includes lymphoplasmacytic lymphoma, lymph node involvement by extranodal marginal zone B-cell lymphoma and T-zone hyperplasia. The clinical stage is often high at presentation, with systemic dissemination. The prognosis of NMZL is thus relatively poor.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Anatomopathologie
/
Induction de rémission
/
Taux de survie
/
Études de suivi
/
Macroglobulinémie de Waldenström
/
Lymphome B de la zone marginale
/
Protéines proto-oncogènes c-bcl-2
/
Diagnostic différentiel
/
Traitement médicamenteux
/
Noeuds lymphatiques
Type d'étude:
Etude diagnostique
/
Étude observationnelle
/
Étude pronostique
Limites du sujet:
Adulte
/
Adulte très âgé
/
Femelle
/
Humains
/
Mâle
langue:
Chinois
Texte intégral:
Chinese Journal of Pathology
Année:
2007
Type:
Article
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