Planned postradiotherapy neck dissection: Rationale and clinical outcomes

Area of Science:

• Oncology
• Head and Neck Surgery
• Pathology

Background:

• Locoregionally advanced squamous cell carcinoma of the head and neck (SCCHN) often presents with advanced neck disease.
• Postradiotherapy neck dissection is a clinical consideration for these patients.

Purpose of the Study:

• To examine pathology results and clinical outcomes in SCCHN patients with advanced neck disease undergoing planned postradiotherapy neck dissection.
• To evaluate the efficacy and necessity of postradiotherapy neck dissection in managing residual disease.

Main Methods:

• A retrospective review of 93 patients with SCCHN treated between 1992 and 2005.
• Analysis of 107 postradiotherapy neck dissections, focusing on pathology findings and patient outcomes.
• Examination of treatment parameters and clinical outcomes, with emphasis on neck dissection results.

Main Results:

• Pathologic evidence of residual carcinoma was found in 28% (30/107) of neck dissection specimens.
• The majority of positive specimens showed microscopic residual carcinoma in a single lymph node.
• Regional disease recurrence occurred in 6 patients, with 4 showing residual carcinoma in their dissection specimen.

Conclusions:

• Postradiotherapy neck dissection reveals residual carcinoma in approximately one-fourth of patients with advanced neck disease.
• The findings support strong consideration for planned postradiotherapy neck dissection due to modest morbidity and potential for detecting residual disease.
• This approach remains a prevailing clinical practice for managing advanced SCCHN at the institution.