How is primary tumor (T) involvement in non–small cell lung cancer (NSCLC) staged?

Updated: Jun 05, 2020
  • Author: Winston W Tan, MD, FACP; Chief Editor: Nagla Abdel Karim, MD, PhD  more...
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Answer

Primary tumor (T) involvement is as follows:

  • Tx - Primary tumor cannot be assessed

  • T0 - No evidence of tumor

  • Tis - Carcinoma in situ

  • T1, T2, T3, T4: size and/or extension of the primary tumor


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