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Baskent University Faculty of Medicine, Neurosurgery, Ankara, Turkey An intracranial aneurysm with a diameter larger than 25 mm is considered a giant aneurysm (GA), and represent about 3-5% of all aneurysms. They are divided into two forms, specifically saccular and fusiform. Fusiform aneurysms are rare, making up only 1% of all intracranial aneurysms. They frequently involve the internal carotid artery (ICA) or the basilar or vertebral arteries, and rarely bleed. Treatment of huge aneurysms that have not bled is still controversial. Unlike the saccular huge aneurysms that lead to death of 80% of the patients few years after diagnosis, fusiform huge aneurysms, particularly those presenting with mass effect, have a better prognosis. In this manuscript, we discuss the infrequently seen intracranial fusiform giant aneurysms in light of the pertinent literature. Keywords : Giant aneurysm, Intracerebral, Non-bleeding aneurysm, Treatment