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  Indian J Med Microbiol
 

Figure 2: Axial T2-w (a) image shows an intermediate signal intensity (asterix) lesion with infiltrative edges along the mid and posterior third of the right lateral border of the oral tongue (red arrows). Along its medial leading edge, note the presence of a thin hyperintense rim (yellow arrows) which extends into the adjacent normal tongue substance representing peritumoral inflammation and edema. On the axial T1-w (b) and DW (c) images, the distinction between the lesion and peritumoral inflammation is not conspicuous. ADC (d) image enhances the conspicuity as the lesion reveals restricted diffusivity (white arrows), whereas, the peritumoral inflammation reveals facilitated diffusivity (black arrows). ADC: Apparent diffusion coefficient. DW: Diffusion-weighted, T2-w: T2-weighted, T1-w: T1-weighted

Figure 2: Axial T2-w (a) image shows an intermediate signal intensity (asterix) lesion with infiltrative edges along the mid and posterior third of the right lateral border of the oral tongue (red arrows). Along its medial leading edge, note the presence of a thin hyperintense rim (yellow arrows) which extends into the adjacent normal tongue substance representing peritumoral inflammation and edema. On the axial T1-w (b) and DW (c) images, the distinction between the lesion and peritumoral inflammation is not conspicuous. ADC (d) image enhances the conspicuity as the lesion reveals restricted diffusivity (white arrows), whereas, the peritumoral inflammation reveals facilitated diffusivity (black arrows). ADC: Apparent diffusion coefficient. DW: Diffusion-weighted, T2-w: T2-weighted, T1-w: T1-weighted