Acute cerebellar hemorrhage, hypertensive. A large acute parenchymal hemorrhage is seen in the left cerebellar hemisphere, on sagittal, axial, and coronal reformatted images from a non-contrast CT exam. Note the vasogenic edema circumferential to this hematoma. Hemorrhage is also seen in the fourth ventricle on the axial image, with interstitial edema and ventricular enlargement noted […]
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Acute parenchymal hemorrhage, due to an underlying AVM. A large acute parenchymal hematoma is noted in the right frontal lobe. Post-contrast, there is tubular like enhancement within and immediately posterior to the hemorrhage, most consistent with acute extravasation of blood. The coronal thick MIP from the CTA study reveals a small nidus of arterial enhancement […]
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The images presented include an axial unenhanced CT, a coronal MIP from the CTA, and a 3D magnified view of the aneurysm from the CTA, obtained using volume rendering technique (VRT). The latter shows the distal internal carotid artery, the two anterior cerebral arteries, and the small multi-lobulated aneurysm originating from the ACOM, near its […]
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Acute subdural and parenchymal hemorrhage, from an underlying AVM, in a patient with fibromuscular dysplasia (FMD). Intracranial aneurysms are a well known associated finding in FMD, with the occurrence of intracranial arteriovenous malformations less common. On axial CT, both the acute subdural and parenchymal hematomas are well demonstrated, together with midline shift and compression of […]
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Occipital lobe hematoma, in an elderly patient with prominent dilated perivascular spaces and extensive cerebral amyloid angiopathy (chronic microbleeds). A large left-sided parenchymal hemorrhage is seen on CT and MR. The CT was acquired 6 days prior to the MR exam. On MR, there is only mild accompanying vasogenic edema (seen best on the T2-weighted […]
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A small fluid collection is noted in the superior left thalamus, with a complete hemosiderin rim demonstrated on the coronal T2* GRE scan. This 50 year old patient presented with a hypertensive hemorrhage on CT in the left thalamus 2 months prior to the MR. The residual of such bleeds on MR can be as […]
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The patient presented with trauma from a fall, with the first scan shown 5 days after hospitalization. The follow-up scan was obtained a month later. A large left acute (hyperdense) occipital hematoma is noted with moderate surrounding vasogenic edema (hypodense). A month later there has been evolution of the hematoma in its CT appearance, with […]
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