Iatrogenic dissection on atherosclerotic stenosis of the middle cerebral artery caused by stent retriever thrombectomy for internal carotid artery embolic occlusion

Stent retriever thrombectomy can worsen atherosclerotic stenosis. Vascular imaging follow-up is important after thrombectomy in patients with intracranial stenotic lesions. Clinicians should be aware that iatrogenic dissections can be more likely in atherosclerotic vessels following stent retriever thrombectomy.