“…3,6,10,28,30,[35][36][37] However, there are situations in which flexible bronchoscopy is unsuccessful in foreign body extraction, including foreign bodies that are impacted in extensive granulation tissue or excessive tissue scarring, a large foreign body that cannot be gripped with flexible forceps, asphyxiating foreign bodies, foreign bodies with a smooth margin, sharp foreign bodies, and several failed attempts by flexible bronchoscopy to retrieve a foreign body. 38 In these cases, rigid bronchoscopy remains the procedure of choice (Table 3). 3,4,6,10,14,22,23,25,35 A variety of instruments are used during flexible bronchoscopy to extract a foreign body, such as grasping for- ceps or Dormia basket, depending on the nature of the foreign body.…”