The cause was complications of gastric lymphoma, his son John said.

Most of the people primary gastric lymphoma affects are over 60 years old.

In this series, 56 patients with primary gastric lymphoma were evaluated retrospectively.

A gastric lymphoma developed in the fourth patient seven years after radiotherapy treatment for Hodgkin's disease.

Risk factors for gastric lymphoma include the following:

A panel of monoclonal antibodies were used to characterise the gastric lymphoma in all 50 patients who had undergone surgery.

Most gastric lymphomas are large cell lymphomas of B cell lineage.

In one female patient, the body ulcer was later identified as a gastric lymphoma and surgical resection was done.

These findings support the Isaacson classification system which separates two extreme groups of gastric lymphomas with different morphology, behaviour, and outcome.

If these results can be confirmed, chemotherapy without gastrectomy should be the treatment of choice for agressive gastric lymphomas.

This observation illustrates the usefulness of endosonography in the staging of low grade gastric lymphoma.

Involvement of other mucosal sites preceded, coincided with, or followed the manifestations of the gastric lymphoma.

The majority of gastric lymphomas are non-Hodgkin's lymphoma of B-cell origin.

Differentiating poor gastric lymphoma from adenocarcinoma is essential because the prognosis and modalities of treatment differ significantly.

Primary small cell gastric lymphomas are less frequent and are usually localised, solitary lesions that can be completely excised.

In March 2009, Thompson was diagnosed with B-cell non-Hodgkins gastric lymphoma.

Despite the slow non-aggresive course of gastric lymphoma, these patients behave as immunocompromised subjects who may eventually develop immunodeficiency-related secondary neoplasias.

In patient 10, who had been operated on for a bleeding ulcer seven years previously, a gastric lymphoma was diagnosed on the basis of biopsy specimens.

Helicobacter pylori, found in the mid-1980's to be a cause of peptic ulcer disease, was later implicated as a contributor to gastric lymphoma as well.

In most series patients with primary gastric lymphoma have been classified according to Rappaport, Kiel, Lukes-Collins, or Working Formulation systems.

However, it may predispose carriers to chronic infection such as leprosy, Helicobacter pylori-positive gastric lymphoma, and AIDS.

Gastrointestinal lymphoma is uncommon, but gastric lymphoma is the most frequent form and could be a good model for the evaluation of MALT tumour behaviour.

These findings were unexpected, as most of previously published clinicopathological studies have shown that low grade B cell gastric lymphoma is a disease process confined to the stomach for years.

Parsonnet J, Hansen S, Rodriguez L, et al.: Helicobacter pylori infection and gastric lymphoma.

In this study, cases have been classified according to the system proposed by Isaacson et al in an attempt to evaluate its reliability in separating different types of gastric lymphoma.