What are the American Joint Committee on Cancer (AJCC) M categories of postradiation sarcoma (PRS)?

Updated: Jul 01, 2020
  • Author: Nagarjun Rao, MD, FRCPath; Chief Editor: Omohodion (Odion) Binitie, MD  more...
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Answer

M categories in the AJCC TNMG staging system are as follows:

  • M0 - No distant metastasis
  • M1 - Distant metastasis
  • M1a - Isolated pulmonary metastasis

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