Presentation
Thunderclap headache. CT to rule out hemorrhage or reversible cerebral vasoconstriction syndrome
Patient Data
Age: 50 years
Gender: Male
From the case:
Basilar artery hypoplasia
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hypoplastic basilary artery
mild hypoplasia of the V4 segments of the vertebral arteries
bilateral fetal origin of the posterior cerebral artery
there are no associated persistent carotid-vertebrobasilar anastomoses
Case Discussion
Features of basilar artery hypoplasia with associated bilateral fetal posterior cerebral arteries. This is unlikely to be arteriosclerotic stenosis or fibromuscular dysplasia since the patient doesn't have arteriosclerotic changes, multifocal stenoses, and dilatations.
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