The 7th lung cancer TNM classification and staging system: Review of the changes and implications

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Apr 28, 2012 (publication date) through Jan 7, 2025

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World Journal of Radiology

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1949-8470

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Radiol. Apr 28, 2012; 4(4): 128-134
Published online Apr 28, 2012. doi: 10.4329/wjr.v4.i4.128

Table 2 Summary of what has changed

Feature	Old - sixth classification 2002-2009	Current, new - seventh classification - Jan 2010
Tumour < 2 cm	T1	T1a
Tumour > 2 but < 3 cm	T1	T1b
Tumour > 3 cm but < 5 cm	T2	T2a
Tumour > 5 but < 7 cm	T2	T2b
Tumour > 7 cm	T2	T3
Tumour - same lobe nodules	T4	T3
Ipsilateral lung nodule - non primary lobe	M1	T4
Malignant pleural effusion	T4	M1a
Contralateral lung nodule	M1	M1a
Distant metastases	M1	M1b

Citation: Mirsadraee S, Oswal D, Alizadeh Y, Caulo A, Beek EJV. The 7th lung cancer TNM classification and staging system: Review of the changes and implications. World J Radiol 2012; 4(4): 128-134
URL: https://www.wjgnet.com/1949-8470/full/v4/i4/128.htm
DOI: https://dx.doi.org/10.4329/wjr.v4.i4.128