Patterns of recurrence in oral tongue cancer with perineural invasion

Background Although perineural invasion (PNI) is recognized as an adverse prognostic factor in oral tongue squamous cell carcinoma (SCC), the patterns of failure are poorly defined. Methods Patients with oral tongue SCC who received primary surgical treatment were identified. Specimens were reviewed by head and neck pathologists. Disease‐specific survival (DSS) and locoregional recurrence‐free survival (LRFS), regional recurrence‐free survival...