Microsurgery is the treatment of choice for cerebellar arteriovenous malformations (AVMs). Nevertheless, endovascular therapy aims to be an effective treatment since the introduction of new embolic agents. Cerebellar AVMs represent a subgroup of vascular lesions with a high rate of hemorrhagic presentation compared with their cerebral counterpart. Moreover, they have a higher incidence of flow-related aneurysms when diagnosed. With this in mind, prompt treatment must be performed to avoid rebleeding with devastating consequences. Herein, we present the case of an unruptured cerebellar AVM treated with precipitating hydrophobic injectable liquid (PHIL) with complete obliteration.

Internal carotid dissection is the most common cause of stroke in the young population. Stroke, the presence of a pseudoaneurysm, and decreased artery lumen with cerebral flow impairment are indications for treatment. Medical therapy with antithrombotic drugs and endovascular therapy with stenting are the main available options. The C-Guard stent is an open cell mesh-covered dual layer stent that has been mainly used in cases of internal carotid artery stenosis with a post-operative reduction in stroke incidence. Thus, we present two cases of internal carotid artery dissections of the cervical segment treated with the open cell dual-layer C-Guard stent without complications.

Carotid cavernous fistulas (CCF) constitute between 10-15% of all intracranial vascular malformations. Clinical symptoms of indirect CCFs include chemosis, conjunctival injection, proptosis, diminished visual acuity, ophthalmoplegia, retro-orbital bruit, periorbital swelling, and hyperlacrimation, in the setting of associated cortical venous reflux, intracranial hemorrhage. Treatment of choice for symptomatic carotid cavernous and cavernous dural fistulas is neuroradiologic intervention via the femoral artery. Owing to the location of the fistula and/or to anatomic variations, a direct surgical approach via the superior ophthalmic vein may be necessary for embolization.

Intracranial aneurysms in pediatric population are rare and differ in several features with their adult counterpart. Clipping and endovascular therapy have both demonstrated favorable clinical outcomes with reconstructive and deconstructive techniques. We present the case of a 5-month-old infant who was admitted to the emergency with interhemispheric and sylvian subarachnoid hemorrhage. CT angiography and three-dimensional digital subtraction angiography revealed a ruptured left pericallosal aneurysm with morphological features of a dissecting aneurysm. Coiling and N-butyl-cyanoacrylate administration were employed to occlude the aneurysm without complications. Endovascular therapy is an effective and safe option in cases of ruptured intracranial aneurysms in pediatric patients with favorable clinical and radiological outcomes.