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| PNS on MRI |
||||
| (+) | (−) | Total | ||
| PNS in the histopathological diagnosis | (+) | 8 | 3 | 11 |
| (−) | 0 | 2 | 2 | |
| Total | 8 | 5 | 13 | |
(+), positive findings of PNS; (−), negative findings of PNS; PNS, perineural spread; Sensitivity: 73%, specificity: 100%, accuracy: 77%.
p = 0.12 (Fisher's exact probability test).
