Conservative Management of Spontaneous Isolated Dissection of the Superior Mesenteric Artery

Table 1

Categorization of angiographic findings of spontaneous isolated dissection of the superior mesenteric artery (SIDSMA).

Type	Angiographic findings
Type I	Patent true and false lumen revealing entry and reentry sites
Type II	Patent true lumen but no reentry flow from the false lumen
Type IIa	Visible false lumen but not visible reentry site (blind pouch of false lumen)
Type IIb	Not visible false luminal flow (thrombosed false lumen) which usually causes true lumen narrowing
Type III	SMA dissection with occlusion of SMA