Figure 2From: Diagnostic accuracy of diffuse reflectance imaging for early detection of pre-malignant and malignant changes in the oral cavity: a feasibility study Imaging results of a typical malignant tongue lesion; (a) photograph of the traumatic ulcer on the right lateral border of the tongue, (b) pathological investigation shows as well-differentiated SCC (WDSCC), (c) monochrome ratio image R545/R575 and (d) PCM ratio image shows the most malignant area in light yellow. Back to article page