"Vertigo, nausea and truncal ataxia are the most common presenting features. Signs of a lateral medullary syndrome may coexist in ~30% 2."
"As with all cases of suspected stroke, CT or MRI is required urgently to exclude haemorrhagic stroke. CT angiography should be utilised if the patient fits thrombolysis therapy guidelines 6. MR angiography and CT angiography both have very high sensitivity for vessel occlusion identification, at 87% and 100% respectively 7. MRI is far superior to CT in the sensitivity of acute ischaemic stroke across all vascular territories. In the first twenty-four hours, studies show approximately 75-95% sensitivity for MRI diffusion-weighted images, compared to CT of 16% 8."
"Headache and neck pain is normally the result of full posterior inferior cerebellar artery territory infarcts and is likely secondary to the associated swelling and mass effect 3. There are multiple eponymous posterior stroke syndromes, often presenting incompletely 4. Variations are common and the PICA syndrome for example, often presents with facial pain as the initial symptom and hypoalgesia, affecting either side of face 5."