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Updated: Jun 13, 2026

Experimental Model to Evaluate Resolution of Pneumonia
Published on: February 17, 2023
Nonresolving pneumonia
Fayez Kheir1, Tamim Hamdi, Walid Khayr
1Department of Medicine, Chicago Medical School/Rosalind Franklin, University of Medicine and Science, Chicago, IL, USA. fmk01@hotmail.com
Abstract:
A 58-year-old man admitted for evaluation of weight loss and dry cough. Initially, he was diagnosed with community-acquired pneumonia. Despite receiving antibiotics, his clinical status deteriorated and was intubated. Fiber optic bronchoscopy revealed a significant amount of mucopurulent secretions. Bronchoalveolar lavage showed marked amount of sulfur granules identified on stain. Microbiology culture was compatible with Actinomyces israelii. Pulmonary actinomycosis is a rare but important and challenging diagnosis to make. It presents with wide spectrum of clinical and radiologic characteristics. Failure to recognize the disease early may result in drastic complications.
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