2012 年 71 巻 4 号 p. 237-241
A diagnosis of neurofibromatosis type 1 (NF1) was clarified after Wallenberg syndrome in an 18-year-old female. The long segment of the right internal carotid artery was stenotic; however, the vertebral-basilar system was intact. Wallenberg syndrome was likely due to the vasculopathy caused by NF1. While ischemic attacks are not common in normal teenagers, they do occur in cases with NF1 because they have a high probability of both developmental abnormality of the vascular system and vasculopathy. We conclude that it is always necessary to take latent disease into consideration in a younger patient with symptoms of ischemic attack.