Maxillary artery pseudoaneurysm causing retinal artery occlusion

Abstract

Purpose: To report a novel case of central retinal artery occlusion in a 44-year-old male caused by emboli from a non-traumatic maxillary artery pseudoaneurysm. Observations: A 44-year-old male with history of hypertension presented to clinic with painless vision loss in his left eye. He was found to have a central retinal artery occlusion. Ocular massage and intraocular pressure lowering agents were administered and the patient was transferred to the emergency department for cerebrovascular work-up. Remarkably, the patient had rapid symptom improvement from no light perception to 20/70 after ocular massage and IOP agents. Neuroimaging studies discovered a maxillary artery pseudoaneurysm with anastomotic branches to the internal carotid artery via the foramen rotundum and Vidian artery. Endovascular embolization was performed to prevent further thromboembolic event. Conclusion and Importance: We believe this to be the first reported case of retinal artery occlusion caused by a maxillary artery pseudoaneurysm. This case demonstrates that visual deficits can be the presenting symptom of a non-traumatic maxillary artery pseudoaneurysm.

Keywords

• Maxillary artery pseudoaneurysm
• Retinal artery occlusion
• CRAO
• BRAO
• Endovascular embolization