Aneurisma pada Segmen Clinoid Arteri Karotis Interna Kiri pada Glaukoma dengan Tekanan Darah Normal dan Sakit Kepala Kronis

Introduction: Aneurysm is an abnormal swelling or bulge in the arterial wall. The location of aneurysms varies, including cerebral aneurysm, thoracic aortic aneurysm and abdominal aortic aneurysm. Aneurysms usually do not cause symptoms unless rupture. Case: Female, 32 years, with chronic headache for last ten years. Eye examinations resulted in an increased cupping disk ratio in both eyes without elevated intraocular pressure. The CT angiography result revealed an aneurysm in the clinoid segment of the left internal carotid artery with a saccular morphology, with a neck measuring 4.39 mm and a dome measuring 2.1 mm. Discussion: Unruptured intracranial aneurysms, normotension glaucoma (NTG), and chronic headaches share vascular dysregulation mechanisms, such as vasospasm and impaired blood flow, which may explain their overlapping clinical manifestations. In this patient, the clinoid segment ICA aneurysm likely contributes to her chronic headaches, and treating it could potentially improve both headache frequency and NTG-related visual changes. Conclusion: Due to the unavailability of magnetic resonance imaging equipment and an interventional suite for digital subtraction angiography, this case underscores the utility of CT angiography for diagnosing anatomical issues, particularly in chronic headache cases, with catheter angiography still considered the gold standard. The patient was referred for intervention procedure.