A rare case of ventricular diverticulum in a child with occipital encephalocele.

Ventricular diverticula are dilatations of the ventricular system caused by stretching and protrusion of the ventricular wall as a result of severe chronic obstructive hydrocephalus. We report a case of lateral ventricular diverticulum arising from the occipital horn in a patient with occipital encephalocele. To the best of our knowledge, this is a first case of ventricular diverticulum in a patient with occipital encephalocele.