Gastrointestinal imaging-practical magnetic resonance imaging approach

Figure 28 Stage T3 rectal cancer. A and B: Axial high-resolution T2-weighted images as well as axial (C) diffusion-weighted imaging (b = 650 s/mm²) and (D) ADC map images. There is a large polypoidal mass lesion arising from the right anterolateral lower rectal wall (A and B) with two foci of tumoral extension beyond the low-signal serosal layer (arrows, B) that show diffusion restriction (C and D) in keeping with stage T3 rectal tumor. ADC: Analog-digital conversion.