Tumor budding as a novel predictor of occult metastasis in cT2N0 tongue squamous cell carcinoma

Occult neck metastasis is an important prognostic factor in patients with tongue squamous cell carcinoma (TSCC) who are deemed clinically negative for neck metastasis. The purpose of this study was to identify predictive factors for occult neck metastasis arising from TSCC and to determine patient prognosis. Ninety-seven patients with cT2N0 TSCC who underwent surgical resection of their primary lesion as initial therapy were enrolled in this retrospective study. Cutoff values for depth of invasion (≥3.3 mm) and the tumor budding score (≥4) were determined using receiver operator characteristic analyses.

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