title: Fibrosarcoma of the trachea with severe tracheal obstruction.
mesh_terms: D000293:Adolescent; D000402:Airway Obstruction / Q000209:etiology*; D001706:Biopsy; D004106:Dilatation; D005260:Female; D005354:Fibrosarcoma / Q000150:complications* / Q000473:pathology / Q000601:surgery; D006801:Humans; D012129:Respiratory Function Tests; D014054:Tomography; D014134:Tracheal Neoplasms / Q000150:complications* / Q000601:surgery; D014135:Tracheal Stenosis / Q000628:therapy