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Incidence of cN0 disease in head-and-neck cancer
Tumor site
cN0
cN0
but
pN+
N0 > N+
with
no neck
treatment
Oral cavity
35-70%
19-54%
17-52%
Oropharynx
17-63%
22%
16-25%
Hypopharynx
28-48%
38%
No data
Larynx:
supraglottis
46-69%
16-26%
33%
Nasopharynx
10-14%
No data
19-50%
Mendenhall
et al.
Head Neck Surg
1980; 3:15-20.
Larynx:
T1-T2 glottis
> 90%
Sinonasal > 90%
Do we need to treat the neck electively?