title: [Test your knowledge].
authors.forename: Arschang
authors.initials: A
authors.lastname: Valipour
mesh_terms: D000015:Abnormalities, Multiple / Q000473:pathology*; D001980:Bronchi / Q000002:abnormalities* / Q000473:pathology*; D001999:Bronchoscopy / Q000379:methods*; D003937:Diagnosis, Differential; D006801:Humans; D033162:Incidental Findings; D014132:Trachea / Q000002:abnormalities* / Q000473:pathology*