Abstract
The purpose of this study was to analyze the outcome of Australian patients treated for early lip cancer. Data on 217 patients with T1 to T2 squamous cell carcinoma (SCC) of the lip and treated with radical intent were analyzed. The addition of local adjuvant radiotherapy in patients with a close/positive margin was associated with a significant improvement in relapse-free survival (RFS; p = .008). Tumor thickness (≤4 mm vs >4 mm) was also significantly associated with RFS (p = .01). The 5-year RFS was 51% after surgery, 87% after radiotherapy, and 92% after adjuvant radiotherapy. Patients with a tumor thickness >4 mm experienced an increased risk of recurrence, especially nodal. Compared with patients having any radiotherapy, those undergoing surgery experienced a higher rate of locoregional recurrence. The addition of adjuvant radiotherapy in patients with inadequate excision significantly decreased the risk of recurrence.
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