Amyloid angiopathy
(Cerebral amyloid angiopathy에서 넘어옴)
Amyloid angiopathy(Cerebral amyloid angiopathy,CAA)는 amyloid가 뇌혈관의 small- to medium-sized blood vessel에 침착되어 생기는 질환으로 고령에서 intracerebral hemorrhage의 원인이 됨.
Image findings
- multifocal microbleeds(or ICH) in corticosubcortical junction
- sparing BG, pons(hypertensive ICH와 다른점)
- convexity SAH
- cortical superficial siderosis
- #Img
DDx
- Trauma
- diffuse axonal injury: trauma Hx, grey-white matter junction, corpus callosum± brainstem
- cortical contusions
- 다른 Microangiopathy
- hypertensive microhemorrhages(BG, pons, cerebellum)
- multiple cavernoma syndrome
- hemorrhagic metastases: melanoma 등
- neurocysticercosis
- fat embolism: starfield pattern, diffusion restriction
- RTx induced vasculopathy
참고
- Amyloidosis: systemic amyloidosis와는 무관함.