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Annals of Oncology 8:S85-S88, 1997
© 1997 European Society for Medical Oncology

Primary lymphoma of the stomach: Three-year results of a prospective multicenter study

P. Koch, B. Grothaus-Pinke, W. Hiddemann, N. Willich, B. Reers, F. del Valle, H. Bodenstein, M. Pfreundschuh, E. Möller, J. Kocik, R. Parwaresch for the German Multicenter Study Group on GI-NHL, M. Tiemann for the German Multicenter Study Group on GI-NHL

Department of Medicine, University of Münster Münster, Germany

1Correspondence to: Dr. Peter Koch Medizinische Universitätsklinik Albert-Schweitzer-Straße 33 D-48149 Münster, Germany

Background In October 1992, an ongoing prospective study on primary gastrointestinal (GI) lymphoma was initiated to evaluate histological features, sites of involvement, and management.

Patients and methods Until May 1996, 352 patients were enrolled, with 279 being evaluable for clinical features (208 patients presented with primary gastric lymphoma). Standardized diagnostic workup included central histologic review and endoscopic and radiologic evaluation of the complete GI tract. Primary surgery or conservative management depended on the physician's decision, followed by radiotherapy with or without chemotherapy. Treatment outcome is evaluable in 122 patients with gastric lymphoma.

Results In 279 evaluable patients, the distribution of NHL was as follows: stomach 74.6%, small bowel 8.6%, ileocoecal region 6.5%, multiocal GI involvement 6.8%. In gastric lymphoma, low-grade NHLs accounted for 39%. Of the remaining high-grade NHLs, 36.1% showed simultaneous low-grade components, thus being also of MALT origin. Of 208 patients with gastric NHL, 71.1% were classified as stage I and II. CCR rate in stomach lymphoma is significantly higher compared to those of the small bowel, whereas involvement of multiple GI organs has the worst prognosis.

So far only 7 patients with gastric NHL in stages I and II presented with progressive disease or relapse. Over all stages there seems to be no difference in therapeutic outcome in surgically or conservatively treated patients. Even after R0-resection in limited stages patients appear to have no better outcome.

Conclusions The value of surgery in treatment of primary gastric lymphoma - as favored by most authors - should be reexamined.

gastrointestinal lymphoma, non-Hodgkin's lymphoma, stomach lymphoma


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