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Lung cancer staging update: the revised TNM classification.

Diederich S - Cancer Imaging (2010)

Bottom Line: With the continuous increase in data and, ideally, our understanding of a disease and its potential therapy, every staging system requires continuous adjustment.The 6th edition was published in 2002 and the 7th edition was published in 2009.The 7th edition became current from January 2010 on.

View Article: PubMed Central - PubMed

Affiliation: Department of Diagnostic and Interventional Radiology, Marien Hospital Düsseldorf, Germany. s.diederich@marien-hospital.de

ABSTRACT
Staging systems aim to describe malignant tumours in a standardized fashion to assist in therapy planning and estimation of prognosis, allow comparison of different therapeutic strategies, facilitate communication between individuals and institutions, improve our knowledge of malignant disease and ultimately improve the outcome for patients. With the continuous increase in data and, ideally, our understanding of a disease and its potential therapy, every staging system requires continuous adjustment. The TNM staging system by the International Union against Cancer (UICC) is applied worldwide and revised regularly, with intervals aiming at a compromise between up-to-date information on the one hand and providing continuity by avoiding too short-lived revisions on the other hand. The 6th edition was published in 2002 and the 7th edition was published in 2009. The 7th edition became current from January 2010 on.

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Related in: MedlinePlus

NSCLC <2 cm. This is classified as T1a in the 7th edition and was classified as T1 in the 6th edition of the TNM staging system.
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Figure 1: NSCLC <2 cm. This is classified as T1a in the 7th edition and was classified as T1 in the 6th edition of the TNM staging system.

Mentions: T staging describes the local extent of a tumour, i.e. infiltration of adjacent structures or organs that has an effect on resectability and prognosis. In the 6th edition tumour size was only used to differentiate between T1 (≤3 cm) and T2 (>3 cm). This has been modified so that tumours >7 cm are now classified as T3 independent of other features, and subclassifications have been introduced to describe tumours with a maximum diameter of up to 7 cm by their size more precisely: T1a (≤2 cm, T1b: >2–3 cm, T2a: >3–5 cm, T2b: >5–7 cm). The other features describing infiltration of visceral or parietal pleura, mediastinum, chest wall or other organs have not been changed (Fig. 1).Figure 1


Lung cancer staging update: the revised TNM classification.

Diederich S - Cancer Imaging (2010)

NSCLC <2 cm. This is classified as T1a in the 7th edition and was classified as T1 in the 6th edition of the TNM staging system.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC2967151&req=5

Figure 1: NSCLC <2 cm. This is classified as T1a in the 7th edition and was classified as T1 in the 6th edition of the TNM staging system.
Mentions: T staging describes the local extent of a tumour, i.e. infiltration of adjacent structures or organs that has an effect on resectability and prognosis. In the 6th edition tumour size was only used to differentiate between T1 (≤3 cm) and T2 (>3 cm). This has been modified so that tumours >7 cm are now classified as T3 independent of other features, and subclassifications have been introduced to describe tumours with a maximum diameter of up to 7 cm by their size more precisely: T1a (≤2 cm, T1b: >2–3 cm, T2a: >3–5 cm, T2b: >5–7 cm). The other features describing infiltration of visceral or parietal pleura, mediastinum, chest wall or other organs have not been changed (Fig. 1).Figure 1

Bottom Line: With the continuous increase in data and, ideally, our understanding of a disease and its potential therapy, every staging system requires continuous adjustment.The 6th edition was published in 2002 and the 7th edition was published in 2009.The 7th edition became current from January 2010 on.

View Article: PubMed Central - PubMed

Affiliation: Department of Diagnostic and Interventional Radiology, Marien Hospital Düsseldorf, Germany. s.diederich@marien-hospital.de

ABSTRACT
Staging systems aim to describe malignant tumours in a standardized fashion to assist in therapy planning and estimation of prognosis, allow comparison of different therapeutic strategies, facilitate communication between individuals and institutions, improve our knowledge of malignant disease and ultimately improve the outcome for patients. With the continuous increase in data and, ideally, our understanding of a disease and its potential therapy, every staging system requires continuous adjustment. The TNM staging system by the International Union against Cancer (UICC) is applied worldwide and revised regularly, with intervals aiming at a compromise between up-to-date information on the one hand and providing continuity by avoiding too short-lived revisions on the other hand. The 6th edition was published in 2002 and the 7th edition was published in 2009. The 7th edition became current from January 2010 on.

Show MeSH
Related in: MedlinePlus