Korean J Radiol.  2016 Dec;17(6):961-964. 10.3348/kjr.2016.17.6.961.

Computed Tomography Findings of Community-Acquired Stenotrophomonas Maltophilia Pneumonia in an Immunocompetent Patient: A Case Report

• Cha YK
• Kim JS
• Park SY
• Oh JY
• Kwon JH

• KMID: 2466293
• DOI: http://doi.org/10.3348/kjr.2016.17.6.961

Abstract

Stenotrophomonas maltophilia (S. maltophilia) is a rare, but globally emerging gram-negative multiple-drug-resistant organism usually found in a nosocomial setting in immunocompromised patients. To our best knowledge, computed tomography (CT) features of community-acquired S. maltophilia pneumonia have not been previously reported in an immunocompetent patient. Herein, we presented the CT findings of a previous healthy 56-year-old male with S. maltophilia pneumonia.

Keyword

Stenotrophomonas maltophilia; Community-acquired pneumonia; Immunocompetent host; CT

MeSH Terms

Anti-Bacterial Agents/therapeutic use
Bronchoalveolar Lavage Fluid/microbiology
Bronchoscopy
Gram-Negative Bacterial Infections/*diagnosis/drug therapy/microbiology
Humans
Immunocompromised Host
Levofloxacin/therapeutic use
Male
Middle Aged
Pleural Effusion/etiology
Pneumonia/*diagnosis/microbiology
Stenotrophomonas maltophilia/*isolation & purification
Tomography, X-Ray Computed
Anti-Bacterial Agents
Levofloxacin

Figure

• 

  Fig. 1 56-year-old man presented with 4-day history of febrile sensation. A. Initial chest radiograph shows increased interstitial markings in both lungs. B. Chest CT with lung window setting shows diffuse thickening of interlobular septae and ill-defined small nodules (arrowheads) in both upper lobes. C. In lower lung zones, CT scan shows diffuse smooth thickening of interlobular septae and patchy ground-glass opacities (arrows). D. On coronal scan, ill-defined small nodules (arrowheads) are predominantly seen in upper lung zones. E. Mediastinal window CT image shows small bilateral pleural effusion (arrowheads), pericardial effusion (white arrows), and thickening of peribronchovascular bundles. F. Follow-up chest radiograph shows ill-defined ground glass opacities in both parahilar areas and increased interstitial markings with developing bilateral pleural effusion.

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