Fig. 1From: Assessment and diagnostic accuracy of lymph node status to predict stage III colon cancer using computed tomographyAssessment of right and left sided tumours (T) and their corresponding anatomical distribution of lymph nodes. Region 1 (yellow) is +/− 5 cm oral and aboral near the tumour site and approximately 3 cm along the feeding arterial branch to the nearest arterial vessel division. Region 3 (blue) is the undivided artery from the aorta (superior mesenteric artery (SMA) or inferior mesenteric artery (IMA)) to the first artery division. Region 2 (green) is between regions 1 and 3Back to article page