Table 4.

CNS involvement in systemic vasculitides.

Disorder	Frequency of CNS Involvement (%)	Disorder	Frequency of CNS Involvement (%)
Systemic lupus erythematosus [36,37]	30–50%	Granulomatosis with polyangiitis [38]	7–11%
Giant cell arteritis [33]	30%	Eosinophilic granulomatosis with polyangiitis [38]	6–10%
Takayasu arteritis [38]	10–20%	Henoch-Schoenlein purpura [38]	0.65–8%
Polyarteritis nodosa [38]	5–25%	Kawasaki disease [38]	5.1%
Microscopic polyangiitis [36]	11%	Behçet’s disease [39]	3–30%

CNS—central nervous system.