1442 / 2351
5/30/16
5
EHNS-ESTRO H&N course
Florence, June 2016
Incidence of pathologic lymph node
metastasis in oropharyngeal tumors
2%
2% 25%
19%
8%
Clinically N0 neck (n=48)
From Candela, 1990
Clinically N
+
neck (n=165)
9%
15% 71%
42%
27%
EHNS-ESTRO H&N course
Florence, June 2016
O’Sullivan B,
IJROBP
2001
Unilateral or bilateral neck treatment?
•
228 tonsil SCC: T1-T3, N0 or
unilteral N+
•
Unilateral wedge-pair fields
•
Contralateral neck failure:
8/228 (3.5%)
•
Unilateral treatment if < 1 cm
soft palate and/or base of
tongue infiltration