Non-HodgkinŒs lymphomas (NHLs) are heterogeneous group of
malignant lymphoproliferative disorders. It is a primary malignant
neoplasm of lymphoid tissue arising from the expansion of malignantly
transformed lymphocytes. It is classified into two large
categories; Hodgkin's lymphoma and Non-Hodgkin's lymphomas.
Genetic alternations, viruses and environmental agents in addition
to radiotherapy and chemotherapy are suggested as etiologic
factors. Primary gastrointestinal lymphoma is very rare compared
to gastrointestinal tract lymphoma arising secondary to primary
nodal disease. Extra nodal lymphoma can involve any part of
the gastrointestinal tract, most commonly being the stomach
followed by small intestine and ileocecal region.