Clinicopathological characteristics and prognostic analysis of XXXX in the young adult in China.

@entity1 @entity5 @entity356 @entity3
The incidence of @entity356 in young has increased steadily in the last decades. Little is known about the clinicopathologic features and prognostic factors of young adult @entity356 @entity1 . The clinicopathological characteristics of 294 young adult @entity356 @entity1 between 20 and 50 years old were reviewed retrospectively from hospital records in Sun Yat-Sen University Cancer Center between 1996 and 2006. They were compared with 706 elder @entity1 51 years of age or over. A steady increasing in the proportion of female in the @entity356 @entity1 as the age decreasing was found. The distinguishing histological features of young adult @entity1 were higher percentage of poorly differentiated grade and distant @entity3 . The distribution of @entity5 -nodes- @entity3 (TNM) stage was similar between these two groups. The 5-year disease-specific survival rate in the young adult group was significantly higher than in the elderly group. More @entity1 receiving adjuvant chemotherapy were found in the young adult group. Multivariable analysis demonstrated that TNM stage and presence of angiolymphatic invasion were the independent negative predictors of survival for young @entity1 with @entity356 . @entity356 in young @entity1 differs from that in elderly @entity1 including a lack of male predilection, more aggressive histologic features, and better survival rate.
