Gastrointestinal lymphomas: an overview with emphasis on new findings and diagnostic problems.

摘要: The first section of this article summarizes the salient clinicopathologic features more common types primary gastrointestinal lymphomas, recent explosion information on low grade B-cell lymphoma mucosa-associated lymphoid tissue (MALT), and new findings multiple lymphomatous polyposis ulcerative jejunitis. second discusses practical problems that may be encountered in diagnosis including large cell malignancies, distinction between reactive hyperplasia, classification diffuse small lymphomas (including potential pitfall mistaking Burkitt's for lymphoma), recognition transformation low-grade MALT lymphoma, assessment gastric biopsies from patients after anti-Helicobacter therapy, nodal or splenic involvement lymphoma.