Clinical and angiographic data for patients with dissecting posterior inferior cerebellar artery aneurysms

Patient No./Age (y)/Sex	Side	Site	Size (mm)	Complications	Signs and Symptoms	CT and MR Findings	Outcome (Follow-up)
1/48/F	R	Lateral medullary	2.5 × 3	None	Neck pain, headache, vomiting	SAH and IVH	Excellent (30 mo)
2/70/M	L	Lateral medullary	4 × 3	None	Neck pain, headache, loss of consciousness	SAH and IVH, hydrocephalus	Moderate disability, cognitive problems
3/46/F	R	Vermian	3 × 10	None	Neck pain, headache, loss of consciousness	SAH and IVH, mild hydrocephalus	Excellent (18 mo)
4/33/M	L	Hemispheric branch	10 × 20 (partially thrombosed)	None	Headache, transient dizziness	Vascular mass	Excellent (12 mo)
5/53/F	R	Vermian	6 × 5	None	Headache, mild cerebellar signs	SAH and ICH	Excellent (6 mo)
6/45/F	R	Vermian	3 × 5	None	Headache, vomiting, mild cerebellar signs	SAH and ICH	Excellent (6 mo)
Additional studies
45/F	L	Lateral medullary	N/A	Mild left-sided dysmetria	Neck pain, headache, loss of consciousness	SAH and IVH	Excellent (N/A)	Lefkowitz et al¹⁰
34/F	L	Not reported	15 × 7	Sight hemisensory symptoms	Headache, loss of consciousness	SAH and IVH	Excellent (6 mo)	Tikkakoski et al¹⁵
63/M	R	Not reported	N/A	None	Not reported	SAH, hydrocephalus	Excellent (17 mo)	Yamaura et al¹⁶
28/M	L	Vermian	N/A	None	Headache, left hemifacial	Normal	Excellent (6 mo)	Dinichert et al⁵

Note:—SAH indicates subarachnoid hemorrhage; IVH, intraventricular hemorrhage.