LAUSR

Colloid cysts are congenital benign lesions constituting 1% of CNS tumors. Pediatric colloid cysts are rare lesions compared with adults. These are more common in the third and fifth decade. Their occurrence in the pediatric age group is less commonly seen. These pediatric colloid cysts have aggressive and varied behavior than in adults. They are non-neoplastic true epithelium lined cysts of the central neuraxis. They may be totally asymptomatic or may manifest with symptoms of raised intracranial pressure. The symptoms may be intermittent, self-limiting, and nonspecifically apparent when the foramen of Monro is blocked temporarily by pendulous movement of the cyst or may be acute and severe presenting with acute hydrocephalus, brain herniation, and sudden death. Pediatric colloid cysts have rarely been reported. We report A 4-year-old boy with the history of headache, anorexia, over sleeping and vomiting was referred to our emergency to undergo a brain CT scan. CT images demonstrated a well-defined, rounded, hyper-dense lesion at the level of the foramen of Monro causing moderate dilatation of the lateral ventricle. The findings from imaging perspective were consistent with the colloid cyst of the third ventricle. Therefore, the diagnosis of the colloid cyst was made. Early detection and total excision of the lesion is a permanent cure with minimum morbidity.