Practical approach to gastrointestinal system lymphoproliferative lesions

Abstract

The gastrointestinal tract is the primary localization site of lymphoproliferative lesions ranging from reactive lymphoid hyperplasia to lymphoma. Diagnosis of these diseases is difficult, especially in small endoscopic biopsies. And integrated approach based on clinical, morphological, immunohistochemical and molecular data is needed for accurate diagnosis. In this review, the basic histological features of non-Hodgkin lymphomas in the gastrointestinal tract and the entities included in the differential diagnosis are discussed.