Leukomalacia, PeriventricularCystsPeriventricular Nodular HeterotopiaCerebral VentriclesEchoencephalographyInfant, NewbornEncephalomalaciaInfant, PrematureInfant, Premature, DiseasesCerebral PalsyCyst FluidBrain DiseasesCerebral HemorrhageHypoxia-Ischemia, BrainOvarian CystsGestational AgeOligodendrogliaBronchopulmonary DysplasiaBrainEpidermal CystMagnetic Resonance ImagingNerve Fibers, MyelinatedDevelopmental DisabilitiesBrain Damage, ChronicInfant, Very Low Birth WeightMidline Thalamic NucleiIntracranial HemorrhagesInfant, Extremely Low Birth WeightInfant, Low Birth WeightMediastinal CystGliosisSynovial CystChoristomaBone CystsPremature BirthRespiratory Distress Syndrome, NewbornAnterior Thalamic NucleiFilaminsBronchogenic CystPregnancyIntensive Care Units, NeonatalDermoid CystKisspeptinsMyelin Basic ProteinHyperoxiaHydrocephalusEthamsylateRetrospective StudiesAnimals, NewbornPreoptic AreaOdontogenic CystsHypothalamus