Cerebral cysts imaging in children

With advances in imaging techniques such as ultrasound، Computed Tomography (CT) scan and Magnetic Resonance Imaging (MRI)، wide spectrum of the brain cysts are demonstrated in the childhood period. Due to different tissues in the brain and ectopia، a wide variety of congenital and acquired cysts، benign or malignant tumors occur in the brain. Brain cycts may be intra or extera parnchymal. Cystic – like lesions، arachnid cysts، congenital cysts and colloid cysts are most common cystic brain lesions. These cysts are divided to normal variation of brain cysts and cysts due to injury before birth، developmental، congenital، tumoral، and traumatic cysts and finall cystic like changes. Some characteristic finding on brain imaging could point out to the most relevant differential diagnosis، like location and size of the cyst، type of perifocal edema، consistency of the lesion، present and feuture of calcification.