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No intra- or extra-axial collection or haemorrhage demonstrated. There is subtle loss of grey-white differentiation within the left insula cortex. The left MCA is hyperdense. Ventricular size, sulcal pattern and basal cisterns all appear normal. No bony abnormality demonstrated.
Elevated MTT and TMax within the left MCA territory with normal to mildly reduced CBV and CBF in keeping with a small core and large ischaemic penumbra.
There is an abrupt occlusive filling defect within the proximal left M2 superior segment in keeping with thrombus.
Four vessel aortic arch anatomy. Common carotid and internal carotid arteries are patent with no dissection. Vertebral arteries are patent with no dissection. Left vertebral artery does not pass through the C6 transverse foramen. Fetal origin to left PCA. No aneurysms identified.
Occlusive thrombus within the proximal left M2 segment with subtle loss of grey-white differentiation. Perfusion imaging demonstrates large ischaemic penumbra within the left MCA territory.