Potential model for differential diagnosis between Crohn's disease and primary intestinal lymphoma

Figure 1 Endoscopic and computed tomographic enterography features in Crohn’s disease. A: Coronary reconstructed CTE reflected stricture with proximal dilation and comb sign in ileum in ileum; B: Phelgmon in distal ileum; C: Stretching and densifying of distal mesenteric artery so-called comb sign in ileum; D: DBE found longitudinal ulcer in distal ileum; E: Colonoscopy detected Pseudo-polyps formation in ascending colon; F: Perianal involvement in CD.

Figure 2 Endoscopic and computed tomographic enterography features in primary intestinal lymphoma. A and B: Axial and coronary reconstructed CTE sections showed mass of sandwich sign in mensentery area; C: Coronary reconstructed CTE reflected aneurysmal dilation in pelvic intestine; D: Coronary reconstructed CTE displayed circular thickening of bowel wall without stricture in ileocecal region; E: DBE showed intraluminal proliferative mass in proximal ileum; F: Colonoscopy revealed irregular ulcer in ileocecal region.

Figure 3 Receiver operating characteristic curve of differentiating model between Crohn’s disease and primary intestinal lymphoma (area under the ROC curve = 0. 989). ROC: Receiver operating characteristic.