Abstract
A study was made of 65 patients with primary gastrointestinal (GI) lymphoma. The occurrence was 40 (62%) in stomach, 15 (23%) in the small intestine, and 10 (15%) in colorectum. The majority of patients had their histology classified according to Rappaport's classification. Diffuse histiocytic type had the worst prognosis (median survival 13.8 months), and nodular histology had the best prognosis. A modified staging system proposed by Blackledge et al. was used. Patients who had their disease confined to one viscus (Stage I) or with spread to regional lymph nodes (Stage II) had an excellent prognosis, with a 5-year survival of 87 and 67%, respectively. However, those who had distant nodal involvement (Stage III, e.g., para-aortic nodes) or spread to adjacent organs within the abdomen (Stage IV) had worse prognosis, with 5-year survival of 40 and 13%, respectively. In Stage I, radiotherapy alone was as effective as surgical resection. None of the 11 patients treated by radiotherapy alone had perforation or bleeding. The 5-year disease-free survival was 51%.
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