Independent Prognostic Significance of Worst Pattern of Invasion-5 in Oral Squamous Cell Carcinoma Patients.
BACKGROUND Worst pattern of invasion-5 (WPOI-5) is a critical histologic feature in oral squamous cell carcinoma (OSCC) and is characterized by tumor satellite dispersion ≥1 mm; its independent prognostic value for disease-free survival (DFS) remains underexplored. PURPOSE The study purpose was to evaluate the role o...