Synovial CystCystsPolyradiculopathyPneumonia, AspirationRespiratory AspirationSpinal DiseasesZygapophyseal JointNerve Compression SyndromesHypoglossal Nerve DiseasesLaminectomyLumbar VertebraeCyst FluidSpinal Cord CompressionDecompression, SurgicalHip ContractureRadiculopathyOdontoid ProcessAtlanto-Axial JointCauda EquinaOvarian CystsSuctionSpinal Nerve RootsSpondylolisthesisEpidermal CystMagnetic Resonance ImagingBiopsy, Fine-Needle