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Clinical Trial
. 2008 Apr 21;14(15):2388-93.
doi: 10.3748/wjg.14.2388.

Primary gastric mucosa associated lymphoid tissue lymphoma: clinical data predicted treatment outcome

Affiliations
Clinical Trial

Primary gastric mucosa associated lymphoid tissue lymphoma: clinical data predicted treatment outcome

Milena Todorovic et al. World J Gastroenterol. .

Abstract

Aim: To determine clinical characteristics and treatment outcome of gastric lymphoma after chemotherapy and immuno-chemotherapy.

Methods: Thirty four patients with primary gastric mucosa associated lymphoid tissue (MALT) lymphoma (Ann Arbor stages I to IV) were enrolled. All had upper gastric endoscopy, abdominal ultrasonography, CT and H pylori status assessment (histology and serology). After anti-H pylori treatment and initial chemotherapy, patients were re-examined every 4 mo.

Results: Histological regression of the lymphoma was complete in 22/34 (64.7%) and partial in 9 (26.5%) patients. Median follow up time for these 31 responders was 60 mo (range 48-120). No regression was noted in 3 patients. Among the 25 (73.5%) H pylori positive patients, the eradication rate was 100%.

Conclusion: Using univariate analysis, predictive factors for overall survival were international prognostic index (IPI) score, hemoglobin level, erythrocyte sedimentation rate (ESR), and platelet numbers (P < 0.005). In addition to this, Cox proportion hazard model differentiate IPI score, ESR, and platelets as predictors of survival.

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Figures

Figure 1
Figure 1
Bone marrow pathohistology in gastric MALT lymphoma patients (HE, × 100). Paratrabecular nodal lymphoid BM infiltration with neoplastic cells.
Figure 2
Figure 2
Immunohistochemistry of CD20 antigen expression in bone marrow biopsy (× 200). Nodal lymphoid BM infiltration with CD20+ in lymphoma cells.
Figure 3
Figure 3
Distribution of IPI values in gastric MALT lymphoma patients. IPI score was a highly significant (P < 0.01) prognostic factor for overall survival of patients.
Figure 4
Figure 4
Kaplan-Meir curve of cumulative survival probability in gastric MALT lymphoma patients. Cumulative survival probability was high in the following period with low rate of death.

References

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