Incidental sonographic finding of an extracranial internal carotid artery aneurysm confirmed by CT angiography.

We report a rare case of an extracranial internal carotid artery aneurysm (EICAA) discovered incidentally by color Doppler sonography (CDUS) and confirmed by CT angiography with three-dimensional reconstructions. As both brain MRI and cerebral angiography were normal and the patient remained asymptomatic, he was neither operated on nor stented but was discharged with appropriate antiplatelet therapy. The volume of his EICAA is checked regularly by CDUS.

Diagnosis and endovascular treatment of midbasilar dissecting aneurysm.

The authors present the case of a patient with a midbasilar dissecting aneurysm successfully treated by staged bilateral endovascular occlusion of the vertebral artery. The clinical and the radiological features are presented with references to the literature, and the choice of endovascular rather than neurosurgical treatment is discussed in light to our previously reported experience about the treatment of unclippable vertebrobasilar aneurysms.