HydrocephalusCerebrospinal Fluid ShuntsHydrocephalus, Normal PressureVentriculoperitoneal ShuntVentriculostomyCerebral AqueductThird VentricleCerebral VentriclesNeuroendoscopyPortasystemic Shunt, SurgicalCerebral VentriculographyPneumoencephalographyCerebrospinal Fluid PressurePortacaval Shunt, SurgicalPeritoneovenous ShuntFourth VentricleEpendymaSpinal PunctureMeningomyeloceleIntracranial PressureSpinal DysraphismCerebrospinal FluidSubarachnoid HemorrhageSubcommissural OrganSubarachnoid SpaceTuberculosis, MeningealLateral VentriclesTomography, X-Ray ComputedMagnetic Resonance ImagingCerebral HemorrhageDandy-Walker SyndromeCerebral Ventricle NeoplasmsInfant, NewbornArachnoid CystsArteriovenous Shunt, SurgicalPostoperative ComplicationsBrain DiseasesHistory, 20th CenturyLeukocyte L1 Antigen ComplexBrainArachnoidMeningitisNeurosurgical ProceduresHistory, 17th CenturyMedical History TakingKaolinTreatment OutcomeHistory, 15th CenturyAgenesis of Corpus CallosumMeningesRetrospective StudiesEquipment FailureMedicine in ArtNeurocutaneous SyndromesHemispherectomyHistory, 18th CenturyAbnormalities, MultipleHypertension, PortalChoroid PlexusHistory, MedievalPseudotumor CerebriFetal DiseasesIntracranial HypertensionIntracranial Hemorrhages