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Radiology, Vol 204, 467-470, Copyright © 1997 by Radiological Society of North America
ARTICLES |
N Shikama, I Izuno, M Oguchi, K Gomi, S Sone, K Takei, S Sasaki, T Wako, N Itou and K Ishii
Department of Radiology, Shinshu University School of Medicine, Asahi, Matsumoto, Japan.
PURPOSE: To determine the appropriate radiation therapy and chemotherapy for primary lymphoma of the nasal cavity to improve the local control and survival rates. MATERIALS AND METHODS: Of the 25 adult patients with stage IE nasal lymphoma, nine underwent local radiation therapy alone and 16 underwent radiation therapy and chemotherapy (intravenous infusion). Radiation doses to the involved area were 22-54 Gy (median dose, 49 Gy). RESULTS: The 5- and 10-year cause-specific survival rates were 91% and 73%, respectively. The 5- and 10-year disease-free survival rates were 83% and 59%, respectively. Eight patients developed recurrent disease: six at the local site, one in the cervical nodes, and one in the small intestine. Five of the six patients with local recurrence received less than 50 Gy. Four of the six patients developed recurrent disease in the treated area; the other two patients developed marginal recurrences. Prognostic factors such as age, sex, maximum tumor size, and lactate dehydrogenase level were of limited value. CONCLUSION: The most common recurrence site was the local site. To improve the local control rate, the involved area should be treated with high-dose radiation therapy. The clinical results did not demonstrate the usefulness of combination chemotherapy for stage IE nasal lymphoma.
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