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  • Title: Thymic epithelial tumors: a clinicopathologic study of 249 cases from a single institution.
    Author: Su XY, Wu WL, Liu N, Zhang SF, Li GD.
    Journal: Int J Clin Exp Pathol; 2014; 7(11):7760-7. PubMed ID: 25550813.
    Abstract:
    The WHO histological classification for thymic epithelial tumors of 2004 edition is widely used, but its prognostic value is still controversial. In the present study we collected 249 Chinese patients with thymic epithelial tumors from West China Hospital of Sichuan University since 1999-2009 to assess the prognosis relating to tumor stages, histological classifications, MG and adjuvant therapy. There were 18 cases of type A (7.2%), 97 of type AB (39.0%), 22 of type B1 (8.8%), 63 of type B2 (25.3%), 16 of type B3 (6.5%) thymomas and 33 of thymic carcinomas (13.3%). According to the Massaoka staging, there were 107 patients in stage I (43%), 73 patients in stage II (29.3%), 50 patients in stage III (20.1%) and 19 in stage IV (7.6%). 101 patients (40.6%) complicated with MG, the incidence of MG was highest in type B3 thymomas, then in B2, none of thymic carcinomas complicated with MG. Cox regression analysis showed the Masaoka stage was the most important prognostic factor. Besides of staging, WHO histological classification was also an independent prognostic factor. The age, gender, MG and adjuvant therapy have no significant influence to the prognosis of the patients.
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