Zusammenfassung
Basierend auf einer zwischen 1990 und 2000 erfolgten weltweiten multizentrischen Erhebung hat die IASLC eine neue Stadieneinteilung und TNM-Formulierung für Lungenkarzinome vorgeschlagen, die die prognostischen Subgruppen besser identifizieren sollen. Diese neue TNM-Klassifikation löst die alte UICC-Klassifikation und das Stadiensystem nach C. Mountain 1997 ab. Die wesentlichen Änderungen betreffen die T- und die M-Klassifikation. pT1 wird in Abhängigkeit von der Tumorgröße in pT1a und pT1b sowie pT2 in pT2a und pT2b unterteilt. pT2-Tumoren größer als 7 cm sind als pT3 zu klassifizieren. Innerhalb der M-Klassifikation wird in M1a (kontralateraler Tumorbefall, Pleurakarzinose) und M1b (Fernmetastasen) differenziert. Im Nodalstatus haben sich keine Änderungen ergeben. Bezüglich der Stadieneinteilung wird das neue TNM ein Upstaging des T2b N0 M0 vom Stadium IB in das Stadium IIA und ein Downstaging des T2a N1 M0 vom Stadium IIB in das Stadium IIA und T4 N0–N1 M0 vom Stadium IIIB in das Stadium IIIA bedingen. Einzelheiten der vorgeschlagenen Klassifikation werden unter praxisrelevanten Aspekten aus Sicht der Pathologie diskutiert.
Abstract
Based on the IASLC multicenter data collected worldwide on 81495 patients diagnosed or registered with lung cancer between 1990 and 2000, the T, N, and M descriptors were analyzed and recommendations for changes in the seventh edition of the TNM classification were proposed on the basis of differences in survival. This new TNM classification replaces the old UICC classification and the staging system according to C. Mountain 1997. The changes principally affect the T and M classifications. For the T component, tumor size was found to have prognostic relevance and its analysis led to recommendations to subclassify T1 into T1a and T1b, and T2 tumors into T2a and T2b and to reclassify T2 tumor >7 cm into T3 tumors. In the M category, M1 was recommended to be subclassified into M1a (contralateral lung nodules and pleural dissemination) and M1b (distant metastasis). There is no change in the N category. The proposed changes for the new stage grouping are to upstage T2b N0 M0 from stage IB to stage IIA and to downstage T2a N1 M0 from stage IIB to stage IIA and T4 N0-N1 M0 from stage IIIB to stage IIIA. The particulars of the new classification are discussed in the context of practice-relevant aspects from a pathology perspective view.
Literatur
Denois P (1982) Classification of malignant tumours. In: Harmer MH (ed) TNM classification of malignant tumours, 3rd edn, enlarged and revised. UICC, Genf
Detterbeck FC, Socinski MA IIB or not IIB (1997) The current question in staging non-small cell lung cancer. Chest 112:229–234
Goldstraw P (2002) IASLC News: The International Staging Committee of the IASLC: its origins and purpose. Lung Cancer 37:345–348
Goldstraw P, Crowley JJ (2006) The International Association for the Study of Lung Cancer International Staging Project on Lung Cancer. J Thorac Oncol 1:281–286
Mountain CF, Carr DT, Anderson WAD (1974) A system for the clinical staging of lung cancer. Am J Roentogenol Radium Nucl Med 120:130–138
Mountain CF (1990) Expanded possibilities for surgical treatment of lung cancer. Survival in stage IIIa disease. Chest 97:1045–1051
Mountain CF (1997) Revisions in the international system for lung cancer. Chest 111:1710–1717
Mountain CF, Dresler CM (1997) Regional lymph node classification for lung cancer staging. Chest 116:1718–1723
Naruke T, Tsuchiya R, Kondo H et al (2001) Prognosis and survival after resection for bronchogenic carcinoma based on the 1997 TNM-staging classification: the Japanese experience. Ann Thorac Surg 71:1759–1764
Rami-Porta R, Ball D, Crowley J et al (2007) The IASLC Lung Cancer Staging Project: proposals for the revision of the T descriptors in the forthcoming (seventh) edition of the TNM classification for lung cancer. J Thorac Oncol 2:593–602
Rami-Porta R, John MD, Crowley JJ, Goldstraw P (2009) The revised TNM staging system for lung cancer. Ann Thorac Cardiovasc Surg 15:4–9
Rusch VW, Crowley J, Giroux DJ et al (2007) The IASLC Lung Cancer Staging Project: proposals for the revision of the N descriptors in the forthcoming (seventh) edition of the TNM classification for lung cancer. J Thorac Oncol 2:603–612
Salzer G (1951) Vorschlag einer Einteilung des Bronchialkarzinoms nach pathol-anatomischen klinischen Gesichtspunkten. Wien Med Wochenschr 101:102–103
Schirren J, Bergmann T, Beqiri S et al (2006) Lymphatic spread in resectable lung cancer: can we trust in a sentinel lymph node? Thorac Cardiovasc Surg 54:373–380
Sobin LH, Wittekind C (eds) (1997) International Union Against Cancer (UICC), TNM classification of malignant tumours, 5th edn. Wiley-Liss, New York, pp 93–97
Sobin LH, Wittekind C (eds) (2002) International Union Against Cancer (UICC), TNM classification of malignant tumours, 6th edn. Wiley-Liss, New York, pp 99–103
Watanabe Y (2003) TNM classification for lung cancer. Ann Torac Cardiovasc Surg 9:343–350
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Fisseler-Eckhoff, A. Neue TNM-Klassifikation maligner Lungentumoren 2009 aus Sicht der Pathologie. Pathologe 30 (Suppl 2), 193–199 (2009). https://doi.org/10.1007/s00292-009-1195-3
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DOI: https://doi.org/10.1007/s00292-009-1195-3