Partialy ulcerated mucosal fragments by nests, sheets, and syncytial clusters of malignant epithelial cells with indistinct cell borders, vesicular nuclei, prominent nucleoli, and moderate amounts of eosinophilic cytoplasm. Mitotic figures are readily identified. The tumor is intimately admixed with a dense lymphoplasmacytic infiltrate, imparting a lymphoepithelioma-like appearance.
Large, exophytic, ulcerated lesion involving the left anterior one-third of the tongue.
Soft tissue fragment measured 1.3x1x0.7 cm, totally embedded.
Lt. anterior tongue lesion, biopsy: