Idiopathic mesenteric phlebosclerosis associated with long-term oral intake of geniposide

Table 1 Imaging characteristics of lesions on endoscopy and computed tomography

No. case	Endoscopic findings				CT findings
	Ileal	Ileocolic	Mucosa	Bowel wall stiffening	Bowel wall thickening			Calcification dstribution1			Luminal narrowing
		valve	color		Extended to A-colon	Extended to T-colon	Extended to L-colon	IMV	SMV	PV
1	Not performed	Not performed	Not performed	Not performed	+	-	-	+++	-	-	No
2	Not involvement	Involvement	Dark blue	+	+	+	-	+++	-	-	No
3	Not involvement	Not involvement	Mild-blue	-	+	-	-	++	-	-	No
4	Not performed	Not performed	Not performed	Not performed	+	-	-	+++	-	-	No
5	Not involvement	Involvement	Dark purple	+	+	+	-	+++	-	-	Yes
6	Not performed	Not performed	Not performed	Not performed	+	+	-	+++	-	-	No
7	Not involvement	Involvement	Dark purple	+	+	+	+	+++	+++	-	No
8	Not performed	Not performed	Not performed	Not performed	-	-	-	++	++	-	No

+: Positive; -: Negative; CT: Computed tomography; A-colon: Ascending colon; IMV: Inferior mesenteric vein; L-colon: Left colon; PV: Portal vein; SMV: Superior mesenteric vein; T-colon: Transverse colon.

¹Calcification scoring system.

Computed tomography score of idiopathic mesenteric phlebosclerosis = bowel wall thickening score + calcification score (+ = 1 point). +: Calcifications limited to straight vein of the colon; ++: Calcifications extended to the paracolic marginal vein; +++: Calcifications extended to the main branch of mesenteric vein; ++++: Calcifications included the trunk of the mesenteric vein; –: No calcifications.