PURPOSE: To analyze the results of radiotherapy (RT) for @entity19166 and to evaluate them compared with the World Health Organization (WHO) classification published in 2001. METHODS AND MATERIALS: The data from 29 @entity1 with @entity19166 treated with RT at Gunma University Hospital between 1978 and 2001 were retrospectively analyzed. Pathologic slides from 23 cases were available and were reviewed by a hematopathologist according to the WHO classification. The original and reviewed diagnoses, @entity1 characteristics, treatment results, and complications were analyzed. In principle, @entity1 with low-grade or @entity706 were treated with RT alone, using 30 Gy as the @entity5 dose. Survival data were calculated using the Kaplan-Meier method. RESULTS: One case that proved to be a @entity6437 was excluded from evaluation. Of the 28 cases, 25 were Stage IAE, 1 was Stage IIAE, and 2 were Stage IVAE. The median follow-up was 71 months. According to the original classification and the Working Formulation, the 5- and 10-year overall survival rate of @entity1 with @entity1893 was 94% and 73%, respectively. The corresponding rates for those with intermediate-grade @entity706 were 67% and 67% (p = 0.15). In contrast, the WHO classification showed a significant difference in the survival curves. The 5- and 10-year overall survival rate of @entity1 with mucosa-associated @entity1074 was 100% and 88%, respectively; for diffuse large B-cell @entity1 , the rates were both 0% (p < 0.001). In @entity1 with @entity1074 , one local and four distant relapses developed; two of them >10 years after initial treatment. All of the relapsed @entity1074 were controlled by salvage therapy. CONCLUSION: Excellent local control and survival can be achieved for @entity1 with orbital @entity1074 using RT alone. A precise histopathologic diagnosis using the WHO classification and long-term follow-up for >10 years is recommended.

Treatment results of radiotherapy for XXXX and histopathologic review according to the WHO classification.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity706 :: ('MESH:D008223', 'Disease') :: ['lymphoma', 'indolent lymphoma'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity6437 :: ('MESH:D006104', 'Disease') :: ['pseudotumor'] @entity1074 :: ('MESH:D018442', 'Disease') :: ['MALT lymphoma', 'MALT lymphomas', 'lymphoid tissue (MALT) lymphoma'] @entity1893 :: ('MESH:D008228', 'Disease') :: ['low-grade lymphoma'] @entity19166 :: ('MESH:C537131', 'Disease') :: ['malignant lymphoma of the orbit']
@entity19166 :: (MESH:C537131,Disease) :: ['malignant lymphoma of the orbit']
