Saturday 26 December 2020

Thymoma and thymic carcinoma staging systems

Masaoka-Koga staging system of thymic tumors:

Source: Jukna A, Jasa M, Mezvevere M, et al. Inside the Mediastinum: the Morphological Spectrum and Stages of Thymic Tumours. Acta Chir Latv. 2016; 16(1):3-8. Available at: https://doi.org/10.1515/chilat-2016-0010.

Source: Detterbeck FC, Nicholson AG, Kondo K, et al. The Masaoka-Koga stage classification for thymic malignancies: clarification and definition of terms. J Thorac Oncol. 2011 Jul;6(7 Suppl 3):S1710-6. Available at: https://doi.org/10.1097/jto.0b013e31821e8cff.

The modified Masaoka staging system separates stage III in IIIa (without invasion of great vessels) and IIIb (with the invasion of great vessels).
Bibliographic reference: NCCN Clinical Practice Guidelines In Oncology (NCCN Guidelines), Thymomas and Thymic Carcinomas, Version 1.2021 - December 4, 2020 [Internet]. Nccn.org. 2020 [cited 26 December 2020]. Available from: https://www.nccn.org/professionals/physician_gls/pdf/thymic.pdf.

The 8th edition thymic TNM stage classifications:

Source: Detterbeck FC. Clinical implication of the new TNM classification of thymic malignancies. J Thorac Dis. 2018 Aug;10(Suppl 22):S2692-S2695. Available at: https://doi.org/10.21037/jtd.2018.08.36.

Source: Detterbeck FC, et al.; Staging and Prognostic Factors Committee; Members of the Advisory Boards; Participating Institutions of the Thymic Domain. The IASLC/ITMIG Thymic Epithelial Tumors Staging Project: proposal for an evidence-based stage classification system for the forthcoming (8th) edition of the TNM classification of malignant tumors. J Thorac Oncol. 2014 Sep;9(9 Suppl 2):S65-72. Available at: https://doi.org/10.1097/jto.0000000000000290.

Relationship between the 8th edition thymic TNM stage and the Masaoka-Kogan system:
Source: Liang G, et al.; Members of the Chinese Alliance for Research in Thymomas. Comparison of the Masaoka-Koga staging and the International Association for the Study of Lung Cancer/the International Thymic Malignancies Interest Group proposal for the TNM staging systems based on the Chinese Alliance for Research in Thymomas retrospective database. J Thorac Dis. 2016 Apr;8(4):727-37. Available at: https://doi.org/10.21037/jtd.2016.03.22.

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