cerebral vascular malformations
Cerebrovascular
malformations • Vein of Galen malformation - Ganzer Fall bei Radiopaedia
Infant with
heart failure. Axial T2 MRI of the brain (above left) shows large vascular flow voids representing the nidus of the lesion along the right hemisphere of the brain and a dilated sagittal sinus. Sagittal US of the midline of the brain (above right) shows a large vascular structure with mixed arterial and venous flow within it that is compressing and displacing the sagittal sinus beneath it. MR angiogram with contrast of the brain (below left) shows a large nidus of arterial vessels along the right cerebral hemisphere fed primarily by the right middle cerebral artery that rapidly drain into a dilated sagittal sinus on the MR venogram (below right).The diagnosis was intracranial arteriovenous malformation with arteriovenous fistula.
Brain stones
revisited—between a rock and a hard place. Axial CT in bone windows (a) and 3D reconstruction (b) of a 33-year-old male with temporal lobe epilepsy. The large amorphous calcification seen at the base of the left temporal lobe in this NCECT represents a known case of an embolised AV malformation. Calcifications are known to appear in 25–30 % of cases in close conjuction with serpentine vessels or within adjacent brain parenchyma
More
images of this case: Arteriovenöse Malformation im Gehirn: MRT TOF gedrehte MIP-Projektion
Imaging to
intervention: a review of what the Interventionalist needs to Know about Hereditary Hemorrhagic Telangiectasia. A and B 12-year-old boy with heterozygous ENG mutation hereditary hemorrhagic telangiectasia and a cerebral capillary vascular malformation. A Late arterial phase lateral projection digital subtraction angiogram of the left internal carotid artery demonstrates a sub centimeter focus of ectasia and blush without arteriovenous shunting in the medial aspect of the left frontal lobe (arrow). B Axial FLAIR sequence showing corresponding focus (arrow)
Imaging to
intervention: a review of what the Interventionalist needs to Know about Hereditary Hemorrhagic Telangiectasia. 32-year-old male who present with a headache. Axial and Coronal T2 weighted images show a cortical nidal AVM within the posterior right frontal lobe measuring 2.5 cm (white arrow)
Cerebrovascular
malformations • Arteriovenous malformation - cerebral - Ganzer Fall bei Radiopaedia
Cerebrovascular
malformations • Sinus pericranii - Ganzer Fall bei Radiopaedia
Cerebrovascular
malformations • Cerebral arteriovenous malformation - Ganzer Fall bei Radiopaedia
Developmental
venous anomaly • Developmental venous anomaly - Ganzer Fall bei Radiopaedia
Vascular malformations of the central nervous system can be divided, as they can elsewhere, into high and low flow malformations.
High flow
- arteriovenous malformation (AVM)
Low flow
- capillary telangiectasia
- cavernous hemangioma
- venous malformations
- developmental venous anomaly (DVA) (formerly called venous angiomas)
- vein of Galen malformation (can be high flow as well)
- cerebral varix
- sinus pericranii (in skull vault)
- mixed vascular malformation (cavernous hemangioma with a DVA)
Siehe auch:
- Developmental Venous Anomaly
- Arteriovenöse Malformation
- zerebrale arteriovenöse Malformation
- Sinus pericranii
- kapilläre Teleangiektasien des ZNS
- durale AV-Fistel
- Kavernom
- mixed vascular malformation
- Vena Galeni Malformation
- Klassifikation zerebraler vaskulärer Malformationen
- zerebrale vaskuläre Malformationen beim Neugeborenen
- intrakranielle arteriovenöse Malformationen
- kapilläre Teleangiektasie
und weiter:
Assoziationen und Differentialdiagnosen zu intrakranielle vaskuläre Malformationen:
Klassifikation
zerebraler vaskulärer Malformationen