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Community-Acquired Pneumonia: Postpandemic, Not Post-COVID-19
Loren Ketai1, Jennifer Febbo1, Hellen K Busby2
1Department of Radiology, University of New Mexico HSC, Albuquerque, New Mexico.
The COVID-19 pandemic reshaped community-acquired pneumonia diagnosis. Postpandemic imaging strategies now consider COVID-19 status, guiding differential diagnoses for various pneumonia presentations.
Area of Science:
- Radiology
- Infectious Diseases
- Pulmonology
Background:
- The COVID-19 pandemic significantly impacted the diagnostic approach to community-acquired pneumonia (CAP).
- Postpandemic diagnostic algorithms require re-evaluation to incorporate COVID-19 status.
- Imaging plays a crucial role in differentiating pneumonia etiologies.
Purpose of the Study:
- To outline postpandemic imaging scenarios for community-acquired pneumonia.
- To guide diagnostic algorithms based on COVID-19 status and radiographic findings.
- To differentiate COVID-19 pneumonia from other infectious and non-infectious causes.
Main Methods:
- Review of clinical and imaging presentations of CAP in the post-COVID-19 era.
- Categorization of pneumonia based on COVID-19 testing results and radiographic patterns.
- Differential diagnosis considerations for various pneumonia subtypes.
Main Results:
- Positive COVID-19 tests with typical findings confirm COVID-19 pneumonia, necessitating vigilance for thromboembolic and fungal diseases.
- Persistent opacities post-COVID-19 may indicate organizing pneumonia rather than secondary infection.
- Negative or unknown COVID-19 status with specific patterns suggests other pathogens (e.g., Mycoplasma, Streptococcus pneumoniae) or coinfection.
Conclusions:
- COVID-19 status is a critical factor in interpreting pneumonia imaging.
- Radiographic patterns, combined with clinical context, aid in diagnosing CAP post-pandemic.
- Atypical imaging patterns warrant further COVID-19 testing based on exposure and local epidemiology.
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