Growth of small unruptured intracranial aneurysm: case report.

Magnetic resonance angiography (MRA) revealed silent but rapid growth of a small unruptured intracranial aneurysm until it was surgically treated to prevent rupture. Modern neuroimaging methods such as MRA and 3-dimensional computed tomography have increased opportunity to detect small unruptured cerebral aneurysms. Strict follow up is an option for the incidentally discovered small intact aneurysms using these methods.