case_images: PMC11828487_01
case_images: Initial CT scan showed hyperdense basilar artery sign.
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case_images: PMC11828487_01_cee-2025-0015-0001-543418_F01.jpg
case_images: F1
case_images: A non-contrast CT scan of the brain revealed no obvious hypodensity, with an Alberta Stroke Program Early CT Score (ASPECTS) of 10, while CT angiography and subsequently cerebral angiography detected an occlusive thrombus at the top-of-the-basilar artery as shown in Figures 1 and 2, respectively.
case_images: Cerebral angiography: vertebral run showed occlusion at the tip of the basilar artery (blue arrow). Bilateral superior cerebellar artery and posterior cerebral artery were not opacified in this study.
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case_images: PMC11828487_01_cee-2025-0015-0001-543418_F02.jpg
case_images: F2
case_images: A non-contrast CT scan of the brain revealed no obvious hypodensity, with an Alberta Stroke Program Early CT Score (ASPECTS) of 10, while CT angiography and subsequently cerebral angiography detected an occlusive thrombus at the top-of-the-basilar artery as shown in Figures 1 and 2, respectively. Magnetic resonance imaging of the brain as shown in Figure 6 which was performed 2 weeks from presentation revealed complete recanalization of the basilar artery thrombosis, late subacute cerebellar reperfusion haemorrhages with residual right intraventricular extension, and mild communicating hydrocephalus.
case_images: Cerebral angiography: vertebral run showed occlusion at the tip of the basilar artery (green arrow).
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case_images: PMC11828487_01_cee-2025-0015-0001-543418_F03.jpg
case_images: F3
case_images: Penumbra reperfusion catheter system, resulting in a modified Treatment in Cerebral Infarction (mTICI) score of 3 as shown in Figures 3 and 4. Post-procedural CT brain as shown in Figure 5 revealed a small area of cerebellar haemorrhage with intraventricular extension.
case_images: With the aid of microcatheters, thrombectomy was performed at the tip of the basilar artery via aspiration system. Blood clots with fibrin sheath were retrieved. Post-thrombectomy angiogram showed complete recanalization of the basilar artery. Superior cerebellar artery and posterior cerebral artery were opacified.
case_images: cee-2025-0015-0001-543418_F04.jpg
case_images: PMC11828487_01_cee-2025-0015-0001-543418_F04.jpg
case_images: F4
case_images: Penumbra reperfusion catheter system, resulting in a modified Treatment in Cerebral Infarction (mTICI) score of 3 as shown in Figures 3 and 4. Post-procedural CT brain as shown in Figure 5 revealed a small area of cerebellar haemorrhage with intraventricular extension.
case_images: Post-procedural CT scan showed cerebellar haemorrhages with intraventricular extension.
case_images: cee-2025-0015-0001-543418_F05.jpg
case_images: PMC11828487_01_cee-2025-0015-0001-543418_F05.jpg
case_images: F5
case_images: Penumbra reperfusion catheter system, resulting in a modified Treatment in Cerebral Infarction (mTICI) score of 3 as shown in Figures 3 and 4. Post-procedural CT brain as shown in Figure 5 revealed a small area of cerebellar haemorrhage with intraventricular extension.
case_images: MRI brain done a week post-procedure. Axial DWI/ADC (red arrow) showed restricted diffusion over cerebellar area. Alongside susceptibility artefact on SWI, this in keeping with late subacute haemorrhage. MRI, magnetic resonance imaging.
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case_images: PMC11828487_01_cee-2025-0015-0001-543418_F06.jpg
case_images: F6
case_images: Magnetic resonance imaging of the brain as shown in Figure 6 which was performed 2 weeks from presentation revealed complete recanalization of the basilar artery thrombosis, late subacute cerebellar reperfusion haemorrhages with residual right intraventricular extension, and mild communicating hydrocephalus.