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JNCI Journal of the National Cancer Institute 2002 94(22):1664-1666; doi:10.1093/jnci/94.22.1664
© 2002 by Oxford University Press
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Journal of the National Cancer Institute, Vol. 94, No. 22, 1664-1666, November 20, 2002
© 2002 Oxford University Press

NEWS

Updates to Staging System Reflect Advances in Imaging, Understanding

Tom Reynolds

The first 150 words of the full text of this article appear below.

Starting in January, physicians and tumor registrars will classify cancers using an updated system published in the sixth edition of the American Joint Committee on Cancer (AJCC) Cancer Staging Manual. Such revisions are made every 5 or 6 years by cancer-site-specific task forces that determine whether new knowledge dictates changes to the system.

The system, called TNM for tumor, node, metastasis, is used by more than 1400 cancer programs accredited by the Commission on Cancer of the American College of Surgeons and is also used by the International Union Against Cancer (UICC).

The system classifies tumors by their anatomic site, histology, and extent. The major determinants of stage, common to all sites, are size or local extension of the primary tumor (T), involvement of regional lymph nodes (N), and the presence or absence of distant metastasis (M), leading to classification into stages I through IV. Each site also has a . . . [Full Text of this Article]


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