Magnetic resonance imaging in rectal cancer: A surgeon’s perspective

Figure 10 Coronal section T2 weighted magnetic resonance imaging to see level of tumor for planning surgery. A and B show tumor (asterisk) along the left lateral wall, that reaches up to the internal sphincter (short white arrows) in B, but spares it in A. The uninvolved external sphincter (darkly hypointense) is shown by black arrows. The long white arrows in A and B shows the spared levator ani.