Segmental arterial mediolysis with subarachnoid hemorrhage following chronic internal carotid artery dissection: illustrative case.

Background: Segmental arterial mediolysis (SAM) is a rare, noninflammatory vascular disease primarily affecting small to medium arteries. Although neurological presentations like subarachnoid hemorrhage (SAH) and ischemic stroke have been reported, awareness of SAM in neurology remains limited. The authors present a unique case of SAM with SAH following chronic internal carotid artery (ICA) dissection and explore the clinical course and potential ethnic implications of the disease.

Eagle syndrome with repeated transient disturbances of consciousness diagnosed using digital subtraction angiography with head rotation: illustrative case.

Background: Eagle syndrome with repeated transient disturbances of consciousness is uncommon, with only a few reported cases. Here, the authors report a rare case of Eagle syndrome with repeated transient disturbances of consciousness in a specific head position, diagnosed using digital subtraction angiography (DSA) with head rotation.

Observations: A 74-year-old man experienced several episodes of transient disturbance of consciousness.