In English | En español
Questions About Cancer? 1-800-4-CANCER

Thyroid Cancer Treatment (PDQ®)

  • Updated: 07/11/2014

Table 2. Regional Lymph Nodes (N)a,b

NXRegional lymph nodes cannot be assessed.
N0No regional lymph node metastasis.
N1Regional lymph node metastasis.
N1aMetastases to Level VI (pretracheal, paratracheal, and prelaryngeal/Delphian lymph nodes).
N1bMetastases to unilateral, bilateral, or contralateral cervical (Levels I, II, III, IV, or V) or retropharyngeal or superior mediastinal lymph nodes (Level VII).

aReprinted with permission from AJCC: Thyroid. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 87-96.
bRegional lymph nodes are the central compartment, lateral cervical, and upper mediastinal lymph nodes.