Focal cortical subarachnoid hemorrhage revealed by recurrent paresthesias: a clinico-radiological syndrome strongly associated with cerebral amyloid angiopathy.

Background: Focal subarachnoid hemorrhage (SAH) is often revealed by transient and recurrent focal neurological episodes. This cause is important to identify because it carries a high risk of intracerebral hemorrhage (ICH). We report the clinical, imaging and prognostic data of 17 patients with focal SAH revealed by short episodes of paresthesias mimicking transient ischemic attacks.