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Retrospective analysis of primary gastric diffuse largeB-cell lymphoma: a single center study from Turkey
Nur Soyer1, Asu Fergün Yilmaz1, Nazan Özsan2
1Department of Hematology, Faculty of Medicine, Ege University, İzmir, Turkey.
Background/Aim:
Diffuse large B-cell primary gastric lymphomas (DLBC-PGLs) are treated with different therapies. Their optimal treatment is not well documented.
Materials And Methods:
We retrospectively analyzed the data of 51 patients diagnosed with DLBC-PGL in the previous 10 years. All patients were treated with R-CHOP as first line. Radiotherapy was added to chemotherapy in 8 patients. Surgery was performed in 5 patients.
Results:
The median follow-up time of the 51 patients was 45.5 (range 5-144) months and the complete response (CR) rate was 90.2%. CR was achieved in 34 (89.4%) of 38 patients treated with single chemotherapy, in all (100%) 5 patients treated with chemotherapy plus surgery, and in 7 (87.5%) of 8 patients treated with chemotherapy plus radiotherapy. The 5-year overall survival (OS) and event-free survival (EFS) rates were 85.8% and 89.6%, respectively. The 5-year OS and EFS rates were not significantly different between patients treated with single chemotherapy or chemotherapy plus radiotherapy/surgery (P > 0.05).
Conclusion:
R-CHOP chemotherapy is as effective as R-CHOP plus radiotherapy/surgery in the treatment of DLBC-PGL patients. Prospective randomized large cohort studies are needed to generate guidelines for the treatment of DLBC-PGL.