Multiple Sclerosis
MRI (left), white matter lesions including within the corpus callosum (sagittal, FLAIR).
MRI (right), periventricular white matter lesions (axial, FLAIR).
[Courtesy of Dr. Hohol]
Hydrocephalus
Ventricular enlargement, periventricular lucency, narrow or absent sulci plus or minus fourth ventricular enlargement.
Abscess – 1
Right Frontoparietal Abscess [Courtesy of Dr. P. Porter]
Three D Angiograms
Image A: Arteriovenous malformation (AVM)
Image B: Posterior communicating artery aneurysm
[Courtesy of Dr. P. Porter]
Internal Carotid Stenosis
Angiograms showing severe internal carotid stenosis. [Courtesy of Dr. J. Spears]
Infarcts
Left Image: Left PCA Infarct
Right Image: Old Large MCA Infarct
Arterio-venous Malformations – AVMs
Image A: Post-contrast axial T1-weighted MRI showing an AVM in the left occipital region.
Image B: Post-contrast coronal T1-weighted MRI showing an AVM.
Image C: Post-contrast sagittal T1-weighted MRI showing an AVM.
[Courtesy of Dr. J. Spears]
Angiograms of Basilar Aneurysm
Image A: Clipped
Image B: Aneurysm
[Courtesy of Dr. P. Porter]
Aneurysms in the Circle of Willis
Left Image: MCA aneurysm. Cerebral angiogram showing middle cerebral artery aneurym.
Centre Image: Anterior communicating artery aneurysm. Oblique view of cerebral angiogram showing an anterior communicating artery aneurtsm (on left of image).
Right Image: Clipped MCA aneurysm. Post-operative cerebral angiogram showing a clipped MCA aneurysm (skin staples visible).
Subarachnoid Hematoma
Image A. Axial CT image with blood filling the suprasellar cistern, ambient cisterns, interhemispheric fissure, and sylvian fissures in the classic star pattern.
Image B. Subarachnoid hemorrhage and aneurysm. Axial non-contrast CT image showing a SAH and right MCA aneurysm with mild hydrocephalus seen by the prominent temporal horns of the lateral ventricles.
Image C. CT without contrast showing blood in basal and suprasellar cisterns, interhemispheric and Sylvian fissures
[Courtesy of Dr. J. Spears]
