Abstract
BackgroundNo clear consensus has been reached on the indication of supraomohyoid neck dissection (SOHND) for clinically positive lymph-node metastasis.PatientsConsecutive 100 patients with previously untreated oral cancer treated at Kobe University Hospital were included in this study. All patients were clinically staged as anyTN1M0 and underwent radical dissection of the primary site and level I–V neck dissection as the initial treatment.ResultsNone of the 100 patients had pathological lymph-node metastasis (pLN) to level V. pLN to level IV was observed in two patients with tongue cancer in whom clinical lymph-node metastasis was preoperatively observed at level II.ConclusionsLevel V may be excluded in the neck dissection for patients with N1 oral cancers. Level IV dissection should be considered in the patient with tongue cancer and clinical lymph-node metastasis at level II.
Highlights
Supraomohyoid neck dissection (SOHND) is classified as a selective dissection of levels I, II, and III of the neck [1]
None of the 100 patients had pathological lymph-node metastasis to level V. pLN to level IV was observed in two patients with tongue cancer in whom clinical lymph-node metastasis was preoperatively observed at level II
Level V may be excluded in the neck dissection for patients with N1 oral cancers
Summary
Supraomohyoid neck dissection (SOHND) is classified as a selective dissection of levels I, II, and III of the neck [1]. Computed tomography (PET-CT) have provided precise preoperative evaluation of neck lymph-node metastases, a prospective trial on prophylactic neck dissections in oral cancer was conducted and found no significant difference in survival between modified radical neck dissection (MRND). To explore the optimal surgical procedure for cN1 oral cancers, in this study, we investigated the appropriateness of SOHND in patients with cN1 oral cancer through a retrospective review of pathological neck lymphnode metastases (pLN) among the patients who underwent level I–V neck dissection for the treatment of cN1 oral cancer at Kobe University Hospital. No clear consensus has been reached on the indication of supraomohyoid neck dissection (SOHND) for clinically positive lymph-node metastasis. All patients were clinically staged as anyTN1M0 and underwent radical dissection of the primary site and level.
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