ENDOVASCULAR TREATMENT OF A DISSECTING POSTEROINFERIOR CEREBELLAR ARTERY ANEURYSM - CASE-REPORT

IMPORTANCE: To demonstrate the usefulness of endovascular techniques i n the treatment of fusiform, dissecting aneurysms. CLINICAL PRESENTATI ON: A 45-year-old woman presented with the acute onset of left-sided n eck pain and headaches. Computed axial tomography demonstrated subarac hnoid and intraventricular hemorrhage as well as a left posterior cere bellar infarct. Conventional cerebral and magnetic resonance angiograp hy demonstrated a dissecting fusiform aneurysm at the origin of the le ft posteroinferior cerebellar artery. INTERVENTION: A balloon occlusio n of the left vertebral artery at the posteroinferior cerebellar arter y origin was tolerated without complication, and the patient underwent successful occlusion of the left posteroinferior cerebellar artery, w ith platinum microembolization coils. CONCLUSION: In patients who tole rate temporary balloon occlusion, endovascular treatment of dissecting fusiform aneurysms with platinum microembolization coils is safe and effective therapy.