Fig. 1From: Assessment of proliferating cell nuclear antigen (PCNA) expression at the invading front of oral squamous cell carcinomaH& E section showing malignant epithelial islands at the ITF (×10 objective lens). The total IFG score was 7 (degree of keratinisation = 1; nuclear polymorphism = 3; pattern of invasion = 2; host response = 1)Back to article page