What is the best treatment management of low grade early stage follicular lymphoma of the mesentery?

If a patient has a single mesenteric mass or lymph node that is demonstrated to be low-grade follicular lymphoma after biopsy, and there is no evidence of disease elsewhere by PET-CT or bone marrow biopsy, then definitive RT (24-30 Gy) would be appropriate. Mesenteric lymph nodes can be more challen...