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Related Experiment Video

Updated: Aug 9, 2025

Transoral Robotic Total Thyroidectomy and Bilateral Central Regional Lymph Node Dissection for Papillary Thyroid Carcinoma
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Utility of Elective Neck Dissection in Clinically Node-Negative Parotid Malignancy.

Sudeepti Vedula1, Yash S Shah1, Gregory L Barinsky1

  • 1Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|February 22, 2023
PubMed
Summary

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Elective neck dissection (END) in parotid cancer may improve survival for patients with poorly differentiated tumors. Histology is key in deciding END eligibility for node-negative parotid malignancy.

Area of Science:

  • Oncology
  • Surgical Oncology
  • Head and Neck Cancer

Background:

  • Parotid gland malignancies require careful staging and treatment planning.
  • The role of elective neck dissection (END) in clinically node-negative (cN0) parotid cancer remains debated.
  • Identifying predictive factors for occult nodal metastasis is crucial for treatment decisions.

Purpose of the Study:

  • To evaluate the utility of END in cN0 parotid malignancy.
  • To identify factors associated with receiving END.
  • To analyze the survival outcomes of patients undergoing END.

Main Methods:

  • Retrospective cohort study using the National Cancer Database (NCDB).
  • Patients with cN0 parotid malignancy were identified.
Keywords:
National Cancer Databaseelective neck dissectionhead and neck canceroccult diseaseparotid malignancy

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  • END was defined as pathological examination of ≥5 lymph nodes.
  • Univariate and multivariate analyses assessed predictors of END, occult metastasis rates, and survival.

    • Main Results:

    • 36.1% of 9405 patients underwent END.
    • END was most common for squamous cell carcinoma (SCC) and salivary duct histology.
    • Occult node disease rates were highest for salivary ductal carcinoma (39.8%) and adenocarcinoma (30.0%).
    • Kaplan-Meier survival analysis revealed significantly improved 5-year overall survival for patients receiving END with poorly differentiated mucoepidermoid carcinoma and moderately/poorly differentiated SCC.

    Conclusions:

    • Histological classification is a primary factor in determining END eligibility for cN0 parotid cancer.
    • END is associated with improved overall survival in patients with poorly differentiated mucoepidermoid and SCC.
    • Histology, clinical T-stage, and occult nodal metastasis rates should guide END decisions.