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Pulmonary Pneumatocele in a Pneumonia Patient Infected with Extended-Spectrum β-Lactamase Producing Proteus mirabilis

  • Ryou, Sung Hyeok (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine) ;
  • Bae, Jong Wook (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine) ;
  • Baek, Hyun Jin (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine) ;
  • Lee, Doo Hyuk (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine) ;
  • Lee, Sang Won (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine) ;
  • Choi, Gyu Ho (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine) ;
  • Han, Kyu Hyung (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine) ;
  • Kim, Se Weon (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine) ;
  • Kim, Hyunbeom (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine) ;
  • Hong, Goohyeon (Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine)
  • Received : 2015.04.23
  • Accepted : 2015.06.19
  • Published : 2015.10.30

Abstract

Pulmonary pneumatoceles are air-filled thin-walled spaces within the lung and are rare in adult cases of pneumonia. We report the case of a 74-year-old male who was admitted with a cough and sputum production. He had been treated with oral dexamethasone since a brain tumorectomy 6 months prior. Contrast-enhanced computed tomography (CT) of the chest revealed a large pneumatocele in the right middle lobe and peripheral pneumonic consolidation. Bronchoalveolar lavage was performed; cultures identified extended-spectrum ${\beta}$-lactamase (ESBL) producing Proteus mirabilis. A 4-week course of intravenous ertapenem was administered, and the pneumatocele with pneumonia resolved on follow-up chest CT. To the best of our knowledge, this is the first reported case of pulmonary pneumatocele caused by ESBL-producing P. mirabilis associated with pneumonia.

Keywords

References

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