7
Patients with oral cavity cancer and pN1
who did not undergo a high-quality neck
dissection
Patients with oral cavity cancer and
pathologic N2 or N3 disease
Patients with pathologically node negative
(pNO) or a single pathologically positive
node (pN1) without extranodal extension
after a high-quality neck dissection, unless
there are indications from the primary
tumor characteristics, such as perineural
invasion, lymphovascular space invasion,
or a T3/4 primary
Ipsilateral
Neck
Contralateral
Neck
A contralateral neck
dissection should be
performed
An ipsilateral therapeutic
selective neck dissecion
should include nodal levels
Ia, Ib, IIa, IIb, III and IV. An
adequate dissection should
inlude at least 18 lymph nodes
Dissection of level V may
be offered in patients
with multi-station
disease
NO
YES
cN+
cavity SCC
Adjuvant
Radiotherapy