Figure 3

Sagittal T1-weighted MRI shows a hypointense lesion in the deep postanal space (red arrows). Note that the lesion is located under the levator ani muscle (yellow arrows), which indicates that it is in the deep postanal space.
Sagittal T1-weighted MRI shows a hypointense lesion in the deep postanal space (red arrows). Note that the lesion is located under the levator ani muscle (yellow arrows), which indicates that it is in the deep postanal space.