Fig. 2From: Preoperative T staging using CT colonography with multiplanar reconstruction for very low rectal cancerPatient in the fifties with T3 lower rectal cancer. a Endoscopic appearance showing irregular ulceration and clear marginal swelling. b CTC imaging with MPR revealing a tumor 50 mm in size. c Macroscopic appearance showing irregular ulceration and clear marginal swelling. d MPR images showing the tumor with an irregular extramural layer. Thus, preoperative T staging by CTC was T3. e revealed tumor invasion beyond the muscularis propria, and the lesion was pathologically staged as T3Back to article page