Intracranial pressure consists of brain parenchyma, CSF, and blood volume. Hydrocephalus occurs when CSF circulation is blocked, causing ventricle dilatation. Current imaging helps determine obstruction level based on ventriculomegaly
Rare congenital brain malformation affecting cerebellar vermis and posterior fossa. Occurs in 1 in 25,000 to 1 in 50,000 people. Causes 4.3% of congenital hydrocephalus cases
IVH occurs when blood enters brain's ventricular system, affecting cerebrospinal fluid production. 30% are primary, caused by trauma or tumors, while 70% are secondary. Occurs in 35% of moderate to severe traumatic brain injuries. Most common in premature infants, especially those with very low birth weight
Hydrocephalus is increased CSF volume causing ventriculomegaly. Terminology should be divided into communicating/non-communicating and obstructive/non-obstructive. Walter Dandy first classified hydrocephalus in 1913 using dye injection
Benign neuroepithelial intraventricular tumor occurring in both pediatric and adult populations. Accounts for 1% of all brain tumors, 2-6% of pediatric tumors. Most common in children under 5 years, with 85% occurring in this age group
Hydrocephalus is abnormal CSF buildup deep within brain ventricles. CSF protects and cushions brain and spine. Excess fluid causes ventricles to widen, putting pressure on brain tissues