Cholesteatoma, Middle EarCholesteatomaEar, MiddleMastoidPleural EffusionEar OssiclesTympanoplastyEar DiseasesOtitis Media with EffusionEar CanalTympanic MembranePericardial EffusionEarPleural Effusion, MalignantOtoscopyOtitis MediaTemporal BoneMiddle Ear VentilationOtitis Media, SuppurativeOtologic Surgical ProceduresEar NeoplasmsHearing Loss, ConductiveEustachian TubeEar, InnerIncusAcoustic Impedance TestsChinchillaMastoiditisEar, ExternalMalleusPetrous BoneCochlear DiseasesStapesProflavineExudates and TransudatesOssicular ReplacementCerebrospinal Fluid OtorrheaSecond-Look SurgeryOssicular ProsthesisStapediusAudiometryAudiometry, Pure-ToneCranial Fossa, MiddleEcho-Planar ImagingTuberculosis, PleuralRound Window, EarLymphoma, Primary EffusionTomography, X-Ray ComputedTensor TympaniHearingBone ConductionFistulaGerbillinaeHaemophilus influenzaeSemicircular CanalsHearing LossDiffusion Magnetic Resonance ImagingTympanic Membrane PerforationOptical ImagingSkull Neoplasms