Head and Neck Cancer

Failure Rate in the Untreated Contralateral Node Negative Neck of Small Lateralized Oral Cavity Cancers: A Multi-Institutional Collaborative Study

2005-2015

The importance of treating the bilateral neck in lateralized small oral cavity squamous cell carcinoma (OCC) is unclear. We sought to define the incidence and predictors of contralateral neck failure (CLF) in patients who underwent unilateral treatment.

Cumulative Incidence of Regional Failure Following Unilateral Treatment for Lateralized, Small Oral Cavity Cancers

2005-2015

2-Year Cumulative Incidence (95% CI)5-Year Cumulative Incidence (95% CI)
Ipsilateral11.9% (7.0-16.8%)13.3% (8.1-18.5%)
Contralateral3.6% (0.8-6.5%)4.3 (1.2-7.4%)
Overall Survival Estimate Following Unilateral Treatment for Lateralized, Small Oral Cavity Cancers

2005-2015

2-Year Overall Survival (95% CI)5-Year Overall Survival (95% CI)
All Patients90.6% (86.2-95.0%)80.6% (74.5-86.8%)
Overall Survival Estimate by Regional Disease Status

2005-2015

2-Year Overall Survival (95% CI)5-Year Overall Survival (95% CI)
No Neck Failure95.0% (91.4-98.6%)85.1% (78.9-91.3%)
Ipsilateral Neck Failure77.9% (60.7-95.0%)63.8% (43.7-83.9%)
Contralateral Neck Failure55.5% (23.1-88.0%)55.5% (23.1-88.0%)

Observation of the clinically node negative contralateral neck in small lateralized OCC can be a suitable management approach in well selected patients, however caution should be applied when DOI upstages small but deeply invasive tumors to T3 on 8th edition AJCC staging.

References

Liu HY, Tam L, Woody NM, Caudell J, Reddy CA, Ghanem A, Schymick M, Joshi N, Geiger J, Lamarre E, Burkey B, Adelstein D, Dunlap N, Siddiqui F, Koyfman S, Porceddu SV. Failure Rate in the Untreated Contralateral Node Negative Neck of Small Lateralized Oral Cavity Cancers: A Multi-Institutional Collaborative Study. Oral Oncol. 2021 Apr;115:105190.