Cryptogenic Organizing Pneumonia: A Unique Case and Literature Review.

Pneumonia is one of the most common pathologies seen in the inpatient setting. The rapid response to treat febrile patients with infiltrates on chest x-ray has reduced hospital length of stay and hospital costs. However, the automatic reaction to treat all infiltrates and opacities seen on a chest x-ray as pneumonia can be costly. This report presents the case of a patient suspected initially of having pneumonia, who was unresponsive to broad-spectrum antibiotics. A 58-year-old woman presented with dyspnea on exertion and a nonproductive cough. Her chest x-ray showed dense right-sided coalescent opacities encompassing the entirety of the right lung. Flexible bronchoscopy biopsy specimens revealed the cause to be cryptogenic organizing pneumonia. This case highlights the diverse set of pulmonary pathologies that can mimic pneumonia and should be suspected in cases of antibiotic-resistant suspected pneumonia patients.