Colloid CystsColloidsThird VentricleCystsCerebral VentriculographyNeuroendoscopyCerebral Ventricle NeoplasmsTechnetium Tc 99m Sulfur ColloidMamillary BodiesBrain DiseasesHydrocephalusFornix, BrainCyst FluidCerebral VentriclesChylomicron RemnantsOvarian CystsNeurosurgical ProceduresEpidermal CystTechnetium CompoundsFatal OutcomeMediastinal CystTomography, X-Ray ComputedSynovial CystChylomicronsBone CystsPlasma SubstitutesGold Colloid, RadioactiveHydroxyethyl Starch DerivativesBronchogenic CystMagnetic Resonance ImagingDermoid Cyst