Controversies in the management of gastrointestinal non-Hodgkin's lymphomas.

Although more than a thousand GI non-Hodgkin's lymphomas have been reported, the literature does not indicate a clear optimal therapeutic approach. This is primarily due to histological confusion and to the absence of uniform staging procedures and therapeutic modalities. This overview attempts to summarize controversies in the multidisciplinary approach to GI non-Hodgkin's lymphomas and to introduce a European multicentric prospective randomized study for the treatment of this rare disease.