Fig 2. A 65-year-old man with Wegener granulomatosis. A, DSA, right common carotid injection, lateral view, showing a prominent AchoA supplying the right PCA territory (arrowhead). Note a separate right PcomA feeding the BA (arrow). B, DSA, right common carotid injection, transfascial view, showing the BA fed by the right PcomA. The BA ends into the superior cerebellar arteries (SCAs) distally and into the AICA arteries proximally. Both VAs end as ipsilateral PICAs without connection to the BA (not shown).