moya-moya disease in basal cortical areas in a man with a family history of vascular disorders: a case report

Introduction: moya-moya disease (mmd) is a rare, chronic, and spontaneous steno-occlusive condition that leads to recurrent strokes due to the occlusion of the terminal internal carotid arteries. this article aims to highlight the significance of familial risk for mmd and other vascular disorders among first-degree relatives in iran. case presentation: we report the case of a 55-year-old male who was admitted to our hospital with complaints of transient ischemic attack, left-sided hemiparesis, and decreased vision that occurred during the night. the initial diagnosis was a brain stem stroke. after undergoing digital subtraction angiography, he was diagnosed with mmd. moya-moya disease is a rare cause of cerebral stroke and is seldom reported in iran. the patient was treated conservatively and had a favorable outcome. his family history was notable, with five of his eight siblings having various cardiovascular diseases. conclusions: these findings may be useful for guiding future genetic studies and preventive counseling, with a focus on the clinical evaluation of serious adverse events.