Obstructive Hydrocephalus Presenting with Bobble-Head Doll Syndrome

A previously healthy macrocephalic 3-year-old boy presented with a 3-month-history of progressive up-and-down head movements that were increased with distraction, decreased with concentration, and voluntarily suppressed ([Video 1], Segment 1). Brain MRI showed suprasellar cystic lesion causing obstructive hydrocephalus ([Fig. 1]). He was successfully treated with endoscopic third ventriculostomy and movements abated ([Video 1], Segment 2)....