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Table 1 The results of TB and FS compared with final histopathology results

From: Toluidine blue versus frozen section for assessment of mucosal tumor margins in oral squamous cell carcinoma

 

Histopathological Diagnoses

Positive

Negative

Total

TB

Positive

6 (TP)

8 (FP)

14 (TP + FP)

Negative

0 (FN)

126 (TN)

126 (FN + TN)

Total

6

134

140 (TP + TN + FP + FN)

FS

Positive

3 (TP)

0 (FP)

3 (TP + FP)

Negative

3 (FN)

134 (TN)

137 (FN + TN)

Total

6

134

140 (TP + TN + FP + FN)

  1. Abbreviations: FN false negative, FP false positive, FS frozen section, TB toluidine blue, TN true negative, TP true positive