title: An elderly woman with stridor.
authors.affiliation: Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore. Electronic address: tan.aik.hau@singhealth.com.sg.
authors.forename: Aik Hau
authors.initials: AH
authors.lastname: Tan
authors.affiliation: Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore.
authors.forename: Su-Ying
authors.initials: SY
authors.lastname: Low
authors.affiliation: Department of Pathology, Singapore General Hospital, Singapore.
authors.forename: Issam
authors.initials: I
authors.lastname: Al Jajeh
mesh_terms: D000368:Aged; D001999:Bronchoscopy; D003528:Carcinoma, Adenoid Cystic / Q000175:diagnosis; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000150:complications* / Q000175:diagnosis* / Q000473:pathology; D012135:Respiratory Sounds / Q000209:etiology*; D013964:Thyroid Neoplasms / Q000150:complications* / Q000175:diagnosis* / Q000473:pathology; D014134:Tracheal Neoplasms / Q000175:diagnosis; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis