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Coronal and axial CTA images showing examples of arterial pathology in three patients: Large left MCA branch aneurysm (A), vein of Galen malformation (B), left cerebellar AVM with an associated parenchymal haematoma (C) and a small left occipital AVM subdural haemorrhage (D). CTA, CT angiography. MCA, middle cerebral artery; AVM, arteriovenous malformation.
