Fig. 4From: Clinical characteristics of narrow-band imaging of oral erythroplakia and its correlation with pathologya Endoscopic examination of the hard palate erythroplakia of a 64-year-old male patient with conventional broadband white light. b NBI image from Fig. 4a. Elongated and twisted intraepithelial microvasculature, or IPCL type III, was shown by NBI; the pathological report invasive squamous cell carcinomaBack to article page