Right posterior communicating artery aneurysm with multiple arterial stenoses and moyamoya disease: A case report.

ObjectiveTo analyze the clinical features, diagnosis, and treatment of cerebral arteriovenous malformation with arterial stenosis and moyamoya disease.MethodsA 50-year-old man with a 20-year history of hypertension and multiple cerebral infarctions was admitted following the detection of cerebral artery stenosis. Imaging revealed a right posterior communicating artery aneurysm, severe stenosis of the right internal carotid artery (C6 segment), bilateral middle cerebral artery occlusion, and moyamoya vessels. The diagnosis was confirmed by cerebral angiography. The patient underwent stent-assisted aneurysm coiling and carotid stenting with balloon angioplasty.ResultsPostoperative antiplatelet, antihypertensive, and lipid-lowering therapies were administered. The patient recovered well without new neurological deficits and was discharged in stable condition. Follow-up assessment is ongoing.ConclusionDigital subtraction angiography remains the gold standard for diagnosing such complex cerebrovascular diseases. Endovascular intervention combined with medication can improve clinical outcomes, and regular follow-up assessment is essential to prevent complications.