Fig. 11From: Magnetic resonance imaging (MRI) in rectal cancer: a comprehensive reviewCoronal images of two low rectal tumours. In one case (a, reformatted from original sagittal 3D T2-weighted image, 3 T), the tumour obliterates the intervening fat (black arrow) between the pelvic floor and the rectal lumen. In the other case (b, TSE image, 1.5 T), the intervening fat is preserved (white arrow)Back to article page