Conclusion: In pT2 floor of mouth cancer (FOMC), a standardized neck dissection (ND) should be carried out, due to the high risk of occult metastases. In cases of pT1 carcinomas with a clinically negative neck using high imaging standards and expertise a tight 'wait and watch' strategy can be used.

Objective: To report on the oncologic results with primary surgical treatment of pT1/pT2 FOMC and to examine the benefit of elective ND in cN0.

Methods: This was a retrospective study design including 216 patients who were treated between 1980 and 2010 for pT1/2 FOMC. The 5-year disease-specific survival (DSS), local and (loco)regional control based on the T and N classification and depth of infiltration were investigated.

Results: DSS was 79.5% and (loco)regional control was 89.8%. DSS in patients staged pN0 was significantly higher, at 84.6%, than in those staged pN+, at 60%. ND was performed in 165 patients, and adjuvant therapy was administered in 124 patients. Ninety patients (41.7%) were staged cN0, and 53.3% of them underwent elective ND. The risk of occult metastases was 4.8% in pT1 and 28.6% in pT2. A depth of infiltration of ≥ 5 mm showed a markedly higher relative frequency of occult neck metastases and pN+ status.

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http://dx.doi.org/10.3109/00016489.2013.796090DOI Listing

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