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Updated: Jun 24, 2026

Murine Oropharyngeal Aspiration Model of Ventilator-associated and Hospital-acquired Bacterial Pneumonia
Published on: June 28, 2018
[A case of chronic aspiration pneumonia caused by juvenile brain stem tumor]
Tomoko Miyagawa1, Yoshirou Mochizuki, Yasuharu Nakahara
1Department of Respiratory Medicine, National Hospital Organization Himeji Medical Center.
Abstract:
A 23-year-old man had been treated for repeated pneumonia from the age of 16. After a diagnosis of eosinophilic pneumonia at the age of 17, he had been given antibiotics and steroids. At the age of 23, he was referred to our hospital. Although he improved rapidly in response to antibiotic medication, his chest X-ray shadows did not improve. Video-assisted thoracoscopic lung biopsy was performed. Fibrosis and invasion of inflammatory cells were seen on the air duct walls and foreign bodies that were thought to be food residue were detected. A diagnosis of chronic aspiration pneumonia was made pathologically. A brain stem tumor was detected on his brain magnetic resonance imaging, which was thought to be the cause of his mis-swallowing.
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