Abstract
Colloid cysts are benign congenital cysts that arise in the anterior part of the third ventricle of
brain at the level of foramen of Monro and constitute 1% of all cerebral tumors. They occur usually
in the younger age and are asymptomatic unless they compress foramen of Monro and
cause hydrocephalus. They can be symptomatic and fatal, if not treated properly. A case is reported
here who had an outside referral for CT Scan of brain with main complaints of persistent
recurrent headache and positional vertigo.

Key words: Colloid cyst. Headache. Vertigo. Hydrocephalus.