Fig. 4From: Toluidine blue versus frozen section for assessment of mucosal tumor margins in oral squamous cell carcinomaReceiver operator curve showing area under curve for FS =75.0% (95%CI 49.0–100.0%) with sensitivity = 50.0% and specificity = 100.0%, p value = 0.039. Area under curve for TB =97% (95%CI 94.2–99.8%) with sensitivity = 100.0% and specificity = 94.0%, p-value< 0.001. Green and blue lines represent FS and TB respectivelyBack to article page