Background: Preservation of contralateral mucosa with microscopic tumor invasion in unilateral septal involvement increases the recurrence risk. The purpose of this study was to analyze the risk of invasion of contralateral mucosa in unilateral septal involvement of cancer and to risk stratify patients.
Methods: Retrospective chart review of patients with histologically proven malignancy with unilateral septal involvement and absence of gross septal tumor involvement on the contralateral side were included.
Results: Among 40 patients, majority (55%) belonged to sixth and seventh decade. The most common type was squamous cell carcinoma (63%). Approximately one-fourth (23%) showed microscopic contralateral invasion. Females (OR 12; 95% CI 2.01-71.35) and patients with septal bone invasion (OR 28.5; CI 3.35-242.0) had a higher risk of developing contralateral mucosal invasion.
Conclusion: Complete resection of contralateral mucosa is preferred in areas along the bony septum. When complete resection is not performed, intraoperative frozen section is strongly recommended.
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