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Special Feature |

Radiological Case of the Month FREE

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Section Editor: Beverly P. Wood, MD

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Arch Pediatr Adolesc Med. 1998;152(9):922. doi:.
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Published online

DENOUEMENT AND DISCUSSION: ORANGE SEED ASPIRATION

Figure 1. Initial anteroposterior inspiratory chest radiograph shows no abnormalities.

Figure 2. Anteroposterior inspiratory chest radiograph on day 2 shows complete opacification of the left hemithorax with marked shift of the mediastinum to the left. The right lung is hyperinflated. These findings indicate complete left lung atelectasis.

The child underwent rigid bronchoscopy, and an orange seed was removed from the left main stem bronchus. Foreign body aspiration into the respiratory tract in children is a common problem, and is life threatening if the object completely obstructs the larynx or trachea. Children younger than 5 years, usually between 1 and 2 years old, are at high risk of foreign body aspiration.1 Any type of material can be aspirated into the airways; eg, peanuts, nuts, seeds, beans, corn, hot dogs, and toy fragments.13 Boys are more commonly affected at a ratio of 2:1.14 Foreign bodies can become lodged in any portion of the airways. The most common site is the right main stem bronchus.3

The clinical symptoms of foreign body aspiration range from no symptoms to severe respiratory distress, depending on the type, size, and location of the foreign body. The diagnostic clinical triad is wheezing, coughing, and decreased breath sounds.4 Often this triad is incomplete. Other symptoms are stridor, cyanosis, dyspnea, tachypnea, intercostal retraction, rhonchi, respiratory crackles, fever, vomiting, hemoptysis, hoarseness, and aphonis.1,2,4,5 An episode of choking associated with aspirable material is significant. Therefore, when evaluating a child with new-onset pulmonary symptoms, physicians should ask the family or caregivers if the child has had a recent choking episode.

Various studies have reported no abnormalities on chest radiographs in 6% to 80% of children with foreign bodies in the respiratory tract.1,6,7 Chest radiographic abnormalities are obstructive emphysema, atelectasis, consolidation, and the presence of a radiopaque object.2,8 Chest radiographs taken during inspiration and expiration are useful in detecting air trapped in the affected lung, but it is not always possible to time exposure to the phase of respiration due to the lack of cooperation from a small child. Chest fluoroscopy or lateral decubitus chest radiographs are useful to show obstructive emphysema, decreased diaphragmatic excursion, or mediastinal shift.2 Flexible bronchoscopy should be considered in children who do not have a definitive history of foreign body aspiration and who have unexplained recurrent or localized wheezing and/or persistent chest radiographic findings (eg, infiltrate or atelectasis) that occur in the same lung segment.3

Rigid bronchoscopy is the procedure of choice to remove foreign bodies from the respiratory tract.3 In a few patients, endoscopic extraction may be impossible despite repeated attempts, and thoracotomy with segmental or wedge lung resection becomes necessary.3 Bronchiectasis, abscess, and bronchial stenosis may develop if the foreign body remains in place for a long time.9

Our patient was seen after choking on a piece of orange; however, oranges are not typically associated with aspiration. The 2-day history of cough, erythematous tympanic membranes, respiratory crackles, and hypoxia suggested an infectious origin. The initial normal chest radiograph was misleading, as it was assumed that if the hypoxia was from a foreign body, radiographic changes would have been seen. This case illustrates several points. Oranges (or more importantly, orange seeds) should be considered in cases of aspiration. Parents should be instructed to remove the seeds before offering oranges or other seeded fruits to toddlers. Radiographic changes due to the aspiration of foreign bodies may not be visible initially even if there is enough obstruction to cause hypoxia. It is possible that lateral decubitus films taken at the time of presentation could be more effective in diagnosis than the anteroposterior inspiratory chest radiograph. Additional imaging studies should be considered in ambiguous cases.

Accepted for publication July 10, 1997.

Reprints: Benjamin S. Wilfond, MD, Pediatric Pulmonary Section, Respiratory Sciences Center, University of Arizona, 1501 N Campbell Ave, Tucson, AZ 85724-5073 (e-mail: wilfond@resp-sci.arizona.edu).

Blazer  SNaveh  YFriedman  A Foreign body in the airway: a review of 200 cases. AJDC. 1980;13468- 71
My  LHe  PSun  D Inhalation of foreign bodies in Chinese children: a review of 400 cases. Laryngoscope. 1991;101657- 660
Kosloske  AM Respiratory foreign body. Hilman  BCed.Pediatric Respiratory Disease: Diagnosis and Treatment Philadelphia, Pa WB Saunders Co1993;513- 520
Muth  DSchafermeyer  RW All that wheezes. Pediatr Emerg Care. 1990;6110- 112
Kramer  TARiding  KHSalkeld  LJ Tracheobronchial and esophageal foreign bodies in the pediatric population. J Otolaryngol. 1986;15355- 358
Losek  JD Diagnostic difficulties of foreign body aspiration in children. Am J Emerg Med. 1990;8348- 350
Wiseman  NE The diagnosis of foreign body aspiration in childhood. J Pediatr Surg. 1984;19531- 535
Steen  KHZimmermann  T Tracheobronchial aspiration of foreign bodies in children: a study of 94 cases. Laryngoscope. 1990;100525- 530
Aytac  AYurdakul  YIkizler  COlga  RSaylam  A Inhalation of foreign bodies in children: report of 500 cases. J Thorac Cardiovasc Surg. 1977;74145- 151

Tables

References

Blazer  SNaveh  YFriedman  A Foreign body in the airway: a review of 200 cases. AJDC. 1980;13468- 71
My  LHe  PSun  D Inhalation of foreign bodies in Chinese children: a review of 400 cases. Laryngoscope. 1991;101657- 660
Kosloske  AM Respiratory foreign body. Hilman  BCed.Pediatric Respiratory Disease: Diagnosis and Treatment Philadelphia, Pa WB Saunders Co1993;513- 520
Muth  DSchafermeyer  RW All that wheezes. Pediatr Emerg Care. 1990;6110- 112
Kramer  TARiding  KHSalkeld  LJ Tracheobronchial and esophageal foreign bodies in the pediatric population. J Otolaryngol. 1986;15355- 358
Losek  JD Diagnostic difficulties of foreign body aspiration in children. Am J Emerg Med. 1990;8348- 350
Wiseman  NE The diagnosis of foreign body aspiration in childhood. J Pediatr Surg. 1984;19531- 535
Steen  KHZimmermann  T Tracheobronchial aspiration of foreign bodies in children: a study of 94 cases. Laryngoscope. 1990;100525- 530
Aytac  AYurdakul  YIkizler  COlga  RSaylam  A Inhalation of foreign bodies in children: report of 500 cases. J Thorac Cardiovasc Surg. 1977;74145- 151

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