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Kaplan Meier analysis of recurrence free survival (PFS) based on extent of resection. STR: subtotal resection. GTR: gross total resection. There were no recurrences within the GTR group. 1-, 3-, and 5 year PFS for STR was 85.2%, 71.0%, and 35.5% respectively. GTR was associated with an improved rate of tumor control than STR and biopsy (p= 0.0276).
