Oncologic outcomes of primary XXXX in adults.

@entity1 @entity34 @entity706 @entity1669 @entity262 @entity2530
A retrospective analysis of adult @entity1 who had @entity1669 involvement of bone was done to evaluate the prognostic factors and the oncologic outcome. Between 1984 and 1994, 28 @entity1 (nine @entity1 and 19 @entity1 ) were diagnosed with @entity706 . The median age was 45 years (range, 23-76 years). The median followup was 40.3 months (range, 0.5 months-15.8 years). Eighteen @entity1 (64%) were classified as having Stage IE disease, two @entity1 (36%) were classified as having @entity34 , and eight @entity1 were classified as having Stage IV disease. Twenty-one of the lesions were classified as diffuse large B cell with multilobulated nuclei. Two @entity1 had local recurrence. Three @entity1 had @entity2530 develop at the site of their radiation therapy. The 5-year Kaplan-Meier survival estimate was 57.8% (95% confidence interval range, 40-33 82.8). Statistically improved survival was seen in @entity1 younger than 40 years and those @entity1 with diffuse large B cell with multilobulated nuclei. @entity1 with primary @entity706 did not have a statistically improved survival compared with @entity1 with @entity262 . The results of the current study suggest that age at diagnosis and histologic subtypes are important prognostic factors; however, the diagnosis of primary @entity706 does not confer improved prognosis.
