Fig. 5From: Computed tomography/magnetic resonance imaging for mandibular boundary invasion of oral squamous cell carcinoma assessmentTwo different types of images of jaw pathology invaded by tumours. Black arrows indicate two curves respectively. a Approximate U-shaped mandibular invasion by oral squamous cell carcinoma at 20× magnification; the blue line suggests the extent of the tumour. b Irregular mandibular invasion at 20× magnification; the blue line suggests the extent of the tumourBack to article page