SinusitisMaxillary SinusitisSphenoid SinusitisEthmoid SinusitisFrontal SinusitisParanasal SinusesMaxillary SinusParanasal Sinus DiseasesEthmoid SinusOrbital DiseasesRhinitisEndoscopyTransilluminationBacteria, AerobicCellulitisAcute DiseaseMycosesNasal PolypsTomography Scanners, X-Ray ComputedTomography, X-Ray ComputedDelayed DiagnosisNose DiseasesPrenatal DiagnosisEarly DiagnosisOtorhinolaryngologic Surgical ProceduresSensitivity and SpecificityAmoxicillin-Potassium Clavulanate CombinationOtitisNasal MucosaFrontal SinusChronic DiseaseRespiratory Tract InfectionsTurbinatesRetrospective StudiesMucoceleAspergillosisAnti-Bacterial AgentsExophthalmosMucormycosisBacterial InfectionsSphenoid SinusCiliary Motility DisordersOroantral FistulaLaryngitisDiagnosisCavernous Sinus ThrombosisDiagnostic ErrorsBrain AbscessRhinitis, Allergic, PerennialEthmoid BoneOtitis MediaPorphyromonasNasal DecongestantsSchizophyllumEpidural AbscessTreatment OutcomeParanasal Sinus NeoplasmsEmpyema, SubduralStomatognathic DiseasesTrichosporonosisTonsillitisCommon ColdFatal OutcomeBacteria, AnaerobicNasal ObstructionProspective StudiesMagnetic Resonance ImagingRhizopusPolypsKartagener SyndromeNasal SeptumTime FactorsIntubation, GastrointestinalAmoxicillinCefuroximePredictive Value of TestsCyclacillinMoraxella (Branhamella) catarrhalis