Table 2.

Number and site of cerebral artery stenoses/occlusions in POEMS syndrome

	Stenosis a	Occlusion b	Stenosis or occlusion
	(n = 26)	(n = 5)	(n = 29)
% in 61 patients	26/61 (42.6 %)	5/61 (8.2 %)	29/61 (47.5 %)
Site of MRA/CTA lesions
Internal carotid artery	17/61 (27.9 %)	3/61 (4.9 %)	20/61 (32.8 %)
Anterior cerebral artery	12/61 (19.7 %)	1/61 (1.6 %)	13/61 (21.3 %)
MCA	8/61 (13.1 %)	2/61 (3.3 %)	10/61 (16.4 %)
BA	1/61 (1.6 %)	0/61 (0 %)	1/61 (1.6 %)
VA	1/61 (1.6 %)	1/61 (1.6 %)	2/61 (3.3 %)
PCA	4/61 (6.6 %)	1/61 (1.6 %)	5/61 (8.2 %)

Data are expressed as number (%); MRA magnetic resonance angiography; CTA computed tomography angiography

^a51–99 % of the vascular diameter or a significant stenosis with residual flow signal downstream

^bOcclusion or a vascular amputation without residual flow signal downstream