A group of six patients with a marked gastric lymphoid “hyperplasia”, two of these with generalised lymphoma and the others suspected for primary gastric lymphoma, were investigated to discriminate between simple reactive hyperplasias and lymphomatous proliferations. Microscopical and ultrastructural examinations were not useful for this purpose but immunological data can give evidence of a two-fold nature of gastric lymphoid hyperplasia. Some cases are without immunological disorders, others are met with peripheral blood signs of immunological alterations similar to those observed in malignant lymphomas and in chronic lymphocytic leukemia. Only these latter cases should, in our opinion, be regarded as primitive gastric lymphomas.

Keywords:
Primary gastric lymphoma, Ig bearing lymphocytes, E rosettes, PHA
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© 1977 S. Karger AG, Basel
1977
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