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

Table 2 Endoscopic parameters of Crohn’s disease and primary intestinal lymphoma patients n (%)

Parameters	CD	PIL	P value	Score
	n = 85	n = 56
Multiple-site lesions	73 (85.9)	19 (33.9)	< 0.001	1
Pseudo-polyp formation	26 (30.6)	10 (17.9)	0.090	N/A
Aphthoid ulcer	37 (43.5)	21 (37.5)	0.477	N/A
Longitudinal ulcer	69 (81.2)	5 (8.9)	< 0.001	1
Irregular ulcer	31 (36.5)	32 (57.1)	0.016	-1
Intraluminal proliferative mass	11 (12.9)	31 (55.4)	< 0.001	-1
Bowel stricture	27 (31.8)	15 (26.8)	0.527	N/A
Anorectal involvement	13 (15.3)	4 (7.1)	0.146	N/A

CD: Crohn’s disease; PIL: Primary intestinal lymphoma.