According to the literature, positive nodal disease is one of the most influential prognostic factors in patients with head and neck carcinomas [ 7 – 9 ] This was confirmed by the present analysis: positive neck disease (pN+) was detected in 34.2% of our cases and was associated with a poorer prognosis, affecting the overall and disease-specific survival rates to a highly significant extent.
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Carrying out adjuvant therapy may therefore have contributed to eliminating possibly significant differences due to these negative prognostic factors.