Erler-Zimmer Berry Aneurysm of Basilar Artery 3D Printed Model

„Erler-Zimmer GmbH & Co. KG 3D model of basilar artery Berry aneurysm:

• Model code: MP2001
• Clinical history
• A 37-year-old patient was admitted to the hospital with headache, vomiting, and disorientation after a blow to the head.
• CT scan showed enlargement of the lateral lobes associated with a large mass projecting into the third ventricle.
• A week later, a shunt was performed for hydrocephalus.
• An angiogram revealed a partially occluded aneurysm measuring 1 x 1 cm originating from the basilar artery.
• The shunt was replaced 3 months after surgery due to occlusion, with repeat cerebral angiographies revealing interval aneurysm enlargement.
• An attempt to ligate the aneurysm was unsuccessful. The patient remained unconscious despite several attempts at shunt repair, and died.
• Pathology
• This slice of the brain is divided in half by a sagittal plane.
• It forms an entire section of half of the brain about 1 cm thick.
• A large, dark-colored oval berry aneurysm measuring 5 x 2 cm in diameter, originating from the basilar artery, is clearly visible on the inner surface.
• It bulged into the diencephalon, pressing on the third ventricle and the lower structures of the pons from below.
• The aneurysm wall appears solid, although a blood clot is visible within the third ventricle and appears to be spreading through the lateral wall of the third ventricle.
• The aneurysm is filled with laminated thrombus.
• A small area of myxoid degeneration measuring 0.4 cm in diameter is seen behind the aneurysm, inside the mandible.
• Read more
• The prevalence of aneurysms in the population is about 3.2 per 100,000 person-years, while rupture is much rarer, occurring in only 7.9 cases per 100,000 person-years.
• Nodular intracranial aneurysms originate from the main blood circulation and are most commonly located around the basilar, occipital, and cerebellar arteries.
• Symptoms may be due to either aneurysmal host factors or mass effect associated with compression of the opposing brain parenchyma and cranial nerves.
• Rupture causes complications due to bleeding and increased intracranial pressure.
• Possible condition: hydrocephalus, bleeding and vascular spasms.
• Management is by surgical methods; in recent years, new therapies include endovascular intervention with coils and subsequent observation.

3D models of basilar artery Berry aneurysm – Erler-Zimmer Anatomy Group

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