Zone 2 VII disease also showed a trend toward increased recurrence risk, but this did not reach statistical significance ( p = 0.158).
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Facial nerve perineural spread from cutaneous squamous cell carcinoma of the head and neck: A single institution analysis of epidemiology, treatment, survival outcomes, and prognostic factors.
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2 As seen in previous studies on PNS, surgical margin status was found to be a highly significant prognostic factor for VII PNS from cSCCHN, with involved margins increasing the chances of recurrence over five times. 7 , 17 Thus, an en bloc clear margin surgical resection should ideally be aimed for to optimize patient outcomes.