What is a third ventricular cysternostomy ?

Triggers: Allergic symptoms are triggered by things like pollen, dust mites, and pet dander; vasomotor rhinitis is more likely to be triggered by cold or by eating, with no allergen.

For hydrocephalus: When hydrocephalus develops form various reasons CSF will be drained to reduce intra cranial pressure, when it is drained from the 3 rd ventricle is called 3rd ventricle cisternostomy ( not cys ).