scholarly journals "Infra-Posterior Inferior Cerebellar Artery Aneurysm" Arising After Occlusion of the Ipsilateral Vertebral Artery. Case Report.

2001 ◽  
Vol 41 (11) ◽  
pp. 545-547 ◽  
Author(s):  
Soichi OYA ◽  
Kazuo TSUTSUMI ◽  
Ichiro YONEKURA ◽  
Tomohiro INOUE
Keyword(s):  
Case Report ◽  
Vertebral Artery ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
Cerebellar Artery

scholarly journals Distal posterior inferior cerebellar artery aneurysm: case report

2005 ◽  
Vol 63 (2a) ◽  
pp. 335-338 ◽  
Author(s):  
Ricardo Ramina ◽  
Viviane Aline Buffon ◽  
Jerônimo Buzetti Milano ◽  
Erasmo Barros da Silva Jr ◽  
Kelly Cristina Bordignon
Keyword(s):  
Case Report ◽  
Vertebral Artery ◽  
Computerized Tomography ◽  
Intraventricular Hemorrhage ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
Subarachnoidal Hemorrhage ◽  
Cerebellar Artery ◽  
Clinical Series ◽  
Pica Aneurysms

The majority of posterior inferior cerebellar artery (PICA) aneurysms are usually found on the bifurcation of the vertebral artery (VA) - PICA junction. Aneurysms arising from more peripheral PICA segments named distal PICA aneurysm are uncommon. The major clinical manifestation is that of an intracranial bleeding and the site of hemorrhage is related to the PICA segment originating the aneurysm. Lesions originating from distal PICA segments, particularly those arising from the telovelotonsillar segment, are associated with hemorrhage extending into the ventricular system, mainly the IV ventricle. A case of a 50-year-old woman with sudden headaches and vomiting, and intraventricular hemorrhage (four ventricles) caused by an aneurysm of the telovelotonsillar segment of the PICA, is presented. No signs of subarachnoidal hemorrhage were found in the computerized tomography. The aneurysm was clipped and the patient presented a favorable outcome. Anatomical aspects and clinical series are reviewed.

scholarly journals Neurosurgery (Neuro Interventional)

2015 ◽  
Vol 42 (S1) ◽  
pp. S43-S44
Author(s):  
JJ Shankar ◽  
L Hodgson
Keyword(s):  
Vertebral Artery ◽  
Retrospective Analysis ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
The Third ◽  
Cerebellar Artery ◽  
Incomplete Coverage ◽  
Negative Findings ◽  
The Right

Purpose: CTA is becoming the frontline modality to reveal aneurysms in patients with SAH. However, in about 20% of SAH patients no aneurysm is found. In these cases, intra-arterial DSA is still performed. Our aim was to evaluate whether negative findings on CTA can reliably exclude aneurysms in patients with acute SAH. Materials and Method: We conducted a retrospective analysis of all DSA performed from August 2010 to July 2014 in patients with various indications. We selected patient who presented with SAH and had a negative CTA. Findings of the CTA were compared with DSA. Results: 857 DSA were performed during the study period. 51(5.95%) patients with SAH and negative findings on CTA who underwent subsequent DSA were identified. Of these, only 3(5.9%) of patients had positive findings on the DSA. One patient had a posterior inferior cerebellar artery aneurysm on the DSA, not seen on CTA due to the incomplete coverage of the head. Second patient’ CTA did not show any evidence of aneurysm. DSA showed suspicious dissection of the right vertebral artery, potentially iatrogenic. The third patient’s DSA showed suspicious tiny protuberance from left ICA, possibly infundibulum. Conclusion: In patients with SAH, negative CTA findings are reliable in ruling out aneurysms in any pattern of SAH on CT.

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