Frozen section pathology for decision making in parotid surgery

Area of Science:

• Head and Neck Surgery
• Pathology
• Oncology

Background:

• Parotid gland tumors require accurate intraoperative assessment for appropriate surgical management.
• Frozen section (FS) pathology is a rapid diagnostic technique used during surgery.

Purpose of the Study:

• To evaluate the accuracy and clinical utility of FS pathology in guiding surgical decisions for parotid lesions.
• To compare FS diagnoses with permanent section diagnoses for parotidectomy specimens.

Main Methods:

• Retrospective analysis of 1339 parotidectomy cases from 2000-2009.
• Comparison of FS pathology results with final permanent section diagnoses.
• Assessment of diagnostic discrepancies and their impact on surgical management.

Main Results:

• FS pathology demonstrated high accuracy for parotid lesions, with sensitivity of 98.5% and specificity of 99.0% for malignancy.
• Minor discrepancies between FS and permanent sections were noted, with only 4 cases potentially altering intraoperative decisions.
• Most changes involved benign/malignant classification or tumor typing, with minimal impact on patient treatment or surgical extent.

Conclusions:

• FS pathology is a reliable tool for intraoperative decision-making in parotid surgery.
• Its high accuracy and utility facilitate timely and complete surgical procedures.
• FS pathology aids surgeons in determining the appropriate extent of parotidectomy.