After a median follow-up time of 36 months in 92 patients with whole abdominal irradiation 9 patients developed relapse of gastrointestinal lymphoma (8 local failures, 1 distant failure). In these cases the analysis of radiation therapy shows low tumor doses or small field sizes. No significant difference in the relapse rates is shown between the 21 patients with inclusion of the inguinal lymph nodes in the abdominal radiation fields (3 recurrences approximately equal to 14