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A: ERUS shows the tumor invading the muscularis propria which can be regarded as a T2 tumor. A lymph node is also seen; B: MRI clearly demonstrates that the tumor is confined to the muscularis propria and does not invade the mesorectal fatty tissue. Lymph nodes are also seen; C: Macroscopic specimen reveals the tumor does not extend to the mesorectal fat; D: Pathology confirms that this is a T2 stage tumor.
