Table 1.

Demographics and characteristics of the 66 patients

	FT: falx and tent of the cerebellum derived from neural crest cells	VE: ventral group derived from endochondral bone	DM: dorsal group derived from membranous bone
N (male/female)	15 (87% / 13%)	30 (27% / 73%)	21 (62% / 38%)
Mean age (years)	65.1	78.4	59.8
Cortical venous reflux	93%	37%	52%
Mode of embolization	Headache, neurological deficit associated with venous infarction, hemorrhage, paraplegia (central myelopathy)	Diplopia, chemosis, bruit	Headache, tinnitus
Mode of embolization	TAE 93%, TAE + TVE 7%	TVE 60%, TAE 7% TAE + TVE 33%	TVE 52%, TAE 19% TAE + TVE 29%

Cortical venous reflux is predominantly observed in the FT group.