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Article in Japanese
Abstract
Case Report
A case of pulmonary abscess caused by Actinomyces naeslundii complicated with chronic necrotizing pulmonary aspergillosis
Kaori Katoa,b Tomotoshi Imanagaa Atsushi Moriwakia Aimi Enokizua Katsuyuki Katahiraa Hiroshi Mukaeb
aSteel Memorial Yawata Hospital
bUniversity of Occupational and Environmental Health, Japan
ABSTRACT
A 70-year-old man who underwent treatment for chronic necrotizing pulmonary aspergillosis (CNPA) presented with fever, cough, and dyspnea on exertion. Chest computed tomography (CT) showed a 20-mm nodule with the subpleural region and pleural thickening in the right lower lobe. Purulent content was taken from the nodule by means of ultrasound-guided aspirations. Actinomyces naeslundii, Streptococcus intermedius, and Fusobacterium nucleatum were cultured from the suppuration. We diagnosed as pulmonary abscess by combined infection that included A. naeslundii. It was difficult to distinguish from deterioration of CNPA on chest CT. After a six-month antibiotic therapy, his chest CT was improved. A. naeslundii does not form druse, so its identification was very difficult. We encountered a rare case of pulmonary abscess caused by A. naeslundii.
KEYWORDS
Chronic necrotizing pulmonary aspergillosis (CNPA) Actinomycosis Pulmonary abscess Actinomyces naeslundii
Received 12 Feb 2013 ／ Accepted 15 Aug 2013
AJRS, 2(6): 751-755, 2013
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