title: A case of endobronchial polyp mimicking congenital lobar emphysema in an infant.
abstract: BACKGROUND
  Congenital lobar emphysema, also called infantile lobar emphysema, is a respiratory disease that occurs in infants when air enters the lungs and cannot leave easily. It results from cartilage deficiency and bronchomalacia causing distal air trapping and respiratory distress. In this study, we present a case of endobronchial polyp mimicking congenital lobar emphysema.
  
  
  METHODS
  An 18-month old infant was admitted to the hospital due to sudden respiratory distress. Chest x- ray showed left hemithorax lucency, mediastinal shift to the right side, left hemidiaphragm flattening, and left oblique fissure bulging to the superior. A broncoscopy showed polyp in the left lower bronchus and the biopsy of the lesion confirmed to be the polyp.
  
  
  CONCLUSIONS
  The findings of this case emphasize the value of bronchoscopy prior to lobectomy in cases of congenital lobar emphysema.
authors.affiliation: Non-Communicable Pediatric Diseases Research Center, Amirkola Hospital , Babol University of Medical Sciences, Babol , Iran. ; Department of Radiology, Amirkola Children's Hospital, Babol University of Medical Sciences, Babol, Iran.
authors.forename: Rahele
authors.initials: R
authors.lastname: Mehrain
authors.affiliation: Department of Radiology, Amirkola Children's Hospital, Babol University of Medical Sciences, Babol, Iran.
authors.forename: Abbas
authors.initials: A
authors.lastname: Hadipur
keywords: Air trapping; Bronchial Obstruction; Bronchoscopy; Congenital lobar emphysema; Endobronchial polyp