A Case of High-Grade Basilar Artery Stenosis with Spontaneous Recovery

High-grade basilar artery stenosis was detected in a 31-year-old man that presented with right hemiparesis and dysarthria. The exact
etiology of the stenosis could not be determined. The patient was treated medically and remained asymptomatic during a 6-months
follow-up period, and follow-up angiograms showed a dramatic improvement in the high-grade stenosis. This report aimed to draw
attention to the importance of follow-up for high-grade basilar artery stenoses with medical therapy prior to using endovascular app-
roaches, especially in young patients with a stable clinical course and unknown etiology.