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Cellular Classification of Thymoma and Thymic Carcinomas

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    Combined Thymoma

    Combinations of the above histologic types can occur within the same tumor. For these cases, the term, combined thymoma, can be used, followed by a listing of the components and the relative amount of each component.[1]

    References:

    1. Rosai J: Histological Typing of Tumours of the Thymus. New York, NY: Springer-Verlag, 2nd ed., 1999.
    2. Okumura M, Ohta M, Tateyama H, et al.: The World Health Organization histologic classification system reflects the oncologic behavior of thymoma: a clinical study of 273 patients. Cancer 94 (3): 624-32, 2002.
    3. Chen G, Marx A, Wen-Hu C, et al.: New WHO histologic classification predicts prognosis of thymic epithelial tumors: a clinicopathologic study of 200 thymoma cases from China. Cancer 95 (2): 420-9, 2002.
    4. Kondo K, Yoshizawa K, Tsuyuguchi M, et al.: WHO histologic classification is a prognostic indicator in thymoma. Ann Thorac Surg 77 (4): 1183-8, 2004.
    5. Rena O, Papalia E, Maggi G, et al.: World Health Organization histologic classification: an independent prognostic factor in resected thymomas. Lung Cancer 50 (1): 59-66, 2005.
    6. Zettl A, Ströbel P, Wagner K, et al.: Recurrent genetic aberrations in thymoma and thymic carcinoma. Am J Pathol 157 (1): 257-66, 2000.
    7. Inoue M, Starostik P, Zettl A, et al.: Correlating genetic aberrations with World Health Organization-defined histology and stage across the spectrum of thymomas. Cancer Res 63 (13): 3708-15, 2003.
    8. Hirabayashi H, Fujii Y, Sakaguchi M, et al.: p16INK4, pRB, p53 and cyclin D1 expression and hypermethylation of CDKN2 gene in thymoma and thymic carcinoma. Int J Cancer 73 (5): 639-44, 1997.
    9. Sasaki H, Kobayashi Y, Tanahashi M, et al.: Ets-1 gene expression in patients with thymoma. Jpn J Thorac Cardiovasc Surg 50 (12): 503-7, 2002.
    10. Sasaki H, Yukiue H, Kobayashi Y, et al.: Cten mRNA expression is correlated with tumor progression in thymoma. Tumour Biol 24 (5): 271-4, 2003 Sep-Oct.
    11. Sasaki H, Ide N, Sendo F, et al.: Glycosylphosphatidyl inositol-anchored protein (GPI-80) gene expression is correlated with human thymoma stage. Cancer Sci 94 (9): 809-13, 2003.
    12. Penzel R, Hoegel J, Schmitz W, et al.: Clusters of chromosomal imbalances in thymic epithelial tumours are associated with the WHO classification and the staging system according to Masaoka. Int J Cancer 105 (4): 494-8, 2003.
    13. Suster S, Moran CA: Thymic carcinoma: spectrum of differentiation and histologic types. Pathology 30 (2): 111-22, 1998.
    14. Suster S, Moran CA: Primary thymic epithelial neoplasms showing combined features of thymoma and thymic carcinoma. A clinicopathologic study of 22 cases. Am J Surg Pathol 20 (12): 1469-80, 1996.
    15. Ogawa K, Toita T, Uno T, et al.: Treatment and prognosis of thymic carcinoma: a retrospective analysis of 40 cases. Cancer 94 (12): 3115-9, 2002.
    16. Blumberg D, Burt ME, Bains MS, et al.: Thymic carcinoma: current staging does not predict prognosis. J Thorac Cardiovasc Surg 115 (2): 303-8; discussion 308-9, 1998.
    17. Levy Y, Afek A, Sherer Y, et al.: Malignant thymoma associated with autoimmune diseases: a retrospective study and review of the literature. Semin Arthritis Rheum 28 (2): 73-9, 1998.

    WebMD Public Information from the National Cancer Institute

    Last Updated: February 25, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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