title: [Results of radiation therapy of extranodal non-Hodgkin's lymphoma of the head and neck--a study of the Japan Lymphoma Radiation Therapy Study Group].
abstract: During the years 1972-81, 168 patients with extranodal Non-Hodgkin's lymphoma localized in the head and neck were treated with radiation. Five-year survival rates were 62% in stage I, 56% in stage II, and 91% in diffuse well-differentiated lymphocytic, 77% in diffuse mixed, 52% in diffuse poorly-differentiated lymphocytic and diffuse histiocytic each. Marginal relapse was rare after radiation therapy, but relapses were not infrequently noticed in distant extranodal sites. Bone and/or soft tissue relapses were frequently noticed in patients with lesions initially located in the nasal cavity, paranasal sinus and oral cavity.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006258:Head and Neck Neoplasms / Q000401:mortality / Q000532:radiotherapy*; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000401:mortality / Q000532:radiotherapy*; D008297:Male; D008875:Middle Aged; D011379:Prognosis