This study evaluated the usefulness of epithelial dysplasia on surgical margin in squamous cell carcinoma of the tongue with Stage I, II. Fifty patients seen between 1995 and 2000 with surgical treatment only were reviewed. Epithelial dysplasia on surgical margin occurred in 26 patients (52%). The clinicopathologic prognosis factors significantly associated with the epithelial dysplasia on surgical margin was tumor growth type, tumor size, tumor thickness, and postoperative local recurrence. Moreover, postoperative local recurrence was positively associated with tumor size, tumor thickness, and epithelial dysplasia on surgical margin. In a multivariate logistic regression analysis, patients with an epithelial dysplasia score of ≥4 points had a predictive value for postoperative local recurrence.
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