Infectious pneumonia in the immunocompetent host: What the radiologist should know

Area of Science:

• Radiology
• Infectious Diseases
• Pulmonology

Background:

• Lung infections are a major cause of morbidity and mortality globally.
• Increasing antimicrobial resistance complicates treatment and outcomes.
• Distinguishing between community-acquired pneumonia (CAP) and hospital-acquired pneumonia (HAP) is crucial for management.

Purpose of the Study:

• To review the radiological patterns of lung infections.
• To highlight "red flag signs" in imaging that guide diagnosis and management.
• To emphasize the importance of radiologist expertise in managing lung infections.

Main Methods:

• Review of established radiological patterns associated with lung infections.
• Identification of characteristic imaging features indicative of specific pathogens or severity.
• Discussion of the clinical significance of these imaging findings.

Main Results:

• Common radiological patterns include lobar consolidation, bronchopneumonia, interstitial patterns, and nodular patterns.
• Specific imaging features act as critical "red flag signs" for diagnosis and treatment adjustments.
• Radiological findings are pivotal in differentiating infection types and guiding therapeutic strategies.

Conclusions:

• A comprehensive understanding of lung infection imaging is essential for effective patient management.
• Radiologists play a vital role in diagnosing and managing lung infections by interpreting complex radiological patterns.
• Awareness of "red flag signs" enhances diagnostic accuracy and improves patient outcomes in the context of rising antimicrobial resistance.