title: The first case report of dental floss pick-related injury presenting with massive hemoptysis: a case report.
abstract: BACKGROUND
  A tracheobronchial foreign body is a rarely mentioned cause of massive hemoptysis. Although an aspirated toothpick is a well-known cause of traumatic injury to the respiratory tract, a similar device called a dental floss pick, which is much larger than a toothpick, has never been described as a tracheobronchial foreign body.
  
  
  METHODS
  We report a case of massive hemoptysis in a 32-year-old man due to a dental floss pick in the left main bronchus. Flexible fiberoptic bronchoscopy was successful in removing the foreign body.
  
  
  CONCLUSIONS
  Tracheobronchial foreign body can be a medical emergency requiring immediate intervention and massive hemoptysis may be the presenting symptom. Flexible fiberoptic bronchoscopy is recommended as the first-line treatment modality for tracheobronchial foreign body removal. A dental floss pick may present as a tracheobronchial foreign body and can reside in the airway asymptomatically for many years.
authors.affiliation: Division of Pulmonary Medicine, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, Chung-Shan South Rd, Taipei, Taiwan. huangct@ntu.edu.tw
authors.forename: Chun-Ta
authors.initials: CT
authors.lastname: Huang
authors.forename: Chao-Chi
authors.initials: CC
authors.lastname: Ho
authors.forename: Yi-Ju
authors.initials: YJ
authors.lastname: Tsai
authors.forename: Pan-Chyr
authors.initials: PC
authors.lastname: Yang