7) Vascular occlusive disease (Moyamoya)

One specific type to know is:

Moyamoya Disease

Occlusive disease of the distal ICAs

On catheter angiography, the collateral vessels resemble puffs of smoke, (moyamoya means “puff of smoke" in Japanese)

see HSS

90094 (presenting with intraventricular hemorrhage, R1-2 conf 2.11.13)

another case presenting as intraventricular hemorrhage in Radiographics 1993

1229295 (CTA, CT Perfusion 2/2013 case presented in MEGA by Lefton 3/4/13)

Treatments:

Surgical

Case in Point (2/28/2006)

Case in Point (7/11/2008) Sickle Cell causing Moyamoya

Wikipedia