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Stage Information for Oropharyngeal Cancer

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

a Reprinted with permission from AJCC: Pharynx. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 41-56.
b Metastases at level VII are considered regional lymph node metastases.
NX Regional lymph nodes cannot be assessed.
N0 No regional lymph node metastasis.
N1 Metastasis in a single ipsilateral lymph node, ≤3 cm in greatest dimension.
N2 Metastasis in a single ipsilateral lymph node, >3 cm but ≤6 cm in greatest dimension, or metastasis in multiple ipsilateral lymph nodes, ≤6 cm in greatest dimension, or in bilateral or contralateral lymph nodes, ≤6 cm in greatest dimension.
N2a Metastasis in a single ipsilateral lymph node >3 cm but ≤6 cm in greatest dimension.
N2b Metastases in multiple ipsilateral lymph nodes, ≤6 cm in greatest dimension.
N2c Metastases in bilateral or contralateral lymph nodes, ≤6 cm in greatest dimension.
N3 Metastasis in a lymph node >6 cm in greatest dimension.

Table 3. Distant Metastasis (M)a

a Reprinted with permission from AJCC: Pharynx. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 41-56.
M0 No distant metastasis.
M1 Distant metastasis.

Table 4. Anatomic Stage/Prognostic Groupsa

Stage T N M
a Reprinted with permission from AJCC: Pharynx. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 41-56.
0 Tis N0 M0
I T1 N0 M0
II T2 N0 M0
III T3 N0 M0
T1 N1 M0
T2 N1 M0
T3 N1 M0
IVA T4a N0 M0
T4a N1 M0
T1 N2 M0
T2 N2 M0
T3 N2 M0
T4a N2 M0
IVB T4b Any N M0
Any T N3 M0
IVC Any T Any N M1

References:

  1. Weber AL, Romo L, Hashmi S: Malignant tumors of the oral cavity and oropharynx: clinical, pathologic, and radiologic evaluation. Neuroimaging Clin N Am 13 (3): 443-64, 2003.
  2. Wong RJ, Lin DT, Schöder H, et al.: Diagnostic and prognostic value of [(18)F]fluorodeoxyglucose positron emission tomography for recurrent head and neck squamous cell carcinoma. J Clin Oncol 20 (20): 4199-208, 2002.
  3. Pharynx. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 41-56.

WebMD Public Information from the National Cancer Institute

Last Updated: February 25, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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