Cerebral amyloid angiopathy

Prognosis
The presence of cortical superficial siderosis (cSS) is strongly associated with an increased risk of intraparenchymal hemorrhage, and disseminated cSS carries twice the risk of focal cSS. For any CSS, aHR was 2.14 (95% CI 1.19-3.85) and for focal cSS (affecting ≤3 sulci) the aHR was 2.11 (95% CI 1.31-2.41). For disseminated cSS (affecting >3 sulci), however, aHR was 4.28 (95% CI 2.91-6.30).