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. 2005 Oct 27;11(Suppl 1):95–118. doi: 10.1177/15910199050110S114

Figure 1.

Figure 1

Figure 1

(Case 1) - A, B, C, D) Vertebral angiography, Towne and lateral projection, revealed a large cerebellar hemispheric AVM with the petrosal vein and its tributaries as the main draining veins. Because of a high flow AVM and stenosis at Galenic-straight sinus junction, transverse pontine vein, lateral mesencephalic vein and basal vein were markedly engorged. E,F) Early and late arterial phase of vetebral angiography, Towne projection, taken after the completion of embolization, revealing that approximately 80 % of the nidus was occluded and a prominent shrinkage of the draining vein was attained. G,H) T1 weighted MRI showing a large AVM in the right cerebellar hemisphere. I,J) T1 weighted MRI after embolization disclosing extensive area with lack of flow void and thrombus formation in the AVM nidus.