2016_Head & Neck COURSE BOOK

STAGING

Tumor confined to nasopharynx, or extends to oropharynx and/or nasal cavity

N0

T1

No regional lymph node metastasis

Unilateral metastasis, in cervical lymph node(s), and/or unilateral or bilateral metastasis in retropharyngeal lymph nodes, 6 cm or less in greatest dimension, above the supraclavicular fossa Bilateral metastasis in cervical lymph node(s), 6 cm or less in greatest dimension, above the supraclavicular fossa

T2

Tumor with parapharyngeal extension

N1

Tumor invades bony structures of skull base and/or paranasal sinuses

T3

N2

Tumor with intracranial extension and/or involvement of cranial nerves, hypopharynx, orbit, or/with extension to the infratemporal fossa/masticator space

T4

Metastasis in cervical lymph node(s) greater than 6 cm in dimension ( a ) or in the supraclavicular fossa ( b )

N3

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