intracranial berry aneurysm (MONDO_0016483) is an intracranial aneurysm with a characteristic rounded shape; the most common form of cerebral aneurysm. Also known as: aneurysm, intracranial berry, familial aneurysmal subarachnoid haemorrhage, familial aneurysmal subarachnoid hemorrhage, familial berry aneurysm, familial intracranial saccular aneurysm, saccular cerebral aneurysm.