Mycotic aneurysm of the posterior cerebral artery
Known bacterial endocarditis, now presenting with headaches.
Cerebral angiogram (DSA)
Loading Stack -
0 images remaining
Angiogram via left vertebral artery injection again demonstrated irregular fusiform aneurysmal dilatation of the P2 segment of the right posterior cerebral artery associated with multiple saccular aneurysms arising from its superior and inferior divisions. These have increased in size and number compared to the DSA performed on 5/11/15, with the largest measuring 3.7 x 3.6 mm. Via a Scepter 4 x 10 mm catheter with its tip positioned in the right P2 just proximal to its bifurcation,
Intracerebral mycotic aneurysms are uncommon. They are now most commonly seen in patients with a history of drug abuse and secondary endocarditis.
They are more common in the anterior and middle cerebral artery territories.
They are often more peripheral in location than berry aneurysms.
Rupture with subarachnoid or intracerebral bleed is the feared complication.
- Radiographics Nov-Dec 2008. Vol 28, Issue 7. Infected Mycotic Aneurysms: Spectrum of Imaging appearances and Management