“…Epileptic seizures, migrainous headaches, transient ischaemic attacks or ischaemic strokes in children and haemorrhagic strokes in adults are the cardinal initial manifestations of this uncommon cerebrovascular disease [1][2][3][4]. Involuntary movements, such as dyskinesia, chorea or hemiballismus [1,5], behavioural disturbances [6], neuropsychological deficits and mental deterioration [7] have rarely been described. Moyamoya disease has to be distinguished from the secondary moyamoya syndrome, which occurs mostly unilaterally and is associated with a series of other diseases [1,8,9].…”