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Updated: Aug 18, 2026

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
Published on: December 19, 2020
Radiology of community-acquired pneumonia
Robert D Tarver1, Shawn D Teague, Darel E Heitkamp
1Department of Radiology, Indiana University School of Medicine, Wishard Memorial Hospital, 1001 West 10th Street, Indianapolis, IN 46202, USA. rtarver@iupui.edu
Abstract:
This article reviews the radiographic appearance of common community-acquired pneumonia. Included are the common bacterial pneumonias, tuberculosis, fungal pneumonia, pneumocystis pneumonia, and viral pneumonias. The various radiographic appearances and the clues for differentiating the pneumonias are discussed. Images enhance the discussion.
Insights
This review covers radiographic findings in common community-acquired pneumonias, including bacterial, tuberculosis, fungal, pneumocystis, and viral types. It details differentiating features visible on X-rays to aid diagnosis.
Area of Science:
- Radiology
- Infectious Diseases
- Pulmonology
Background:
- Community-acquired pneumonia (CAP) presents diverse radiographic findings.
- Accurate diagnosis relies on interpreting these imaging patterns.
Purpose of the Study:
- To review the radiographic appearances of common CAP etiologies.
- To highlight key imaging features for differentiating pneumonia types.
Main Methods:
- Review of radiographic images and literature.
- Discussion of characteristic findings for various pneumonia pathogens.
Main Results:
- Bacterial pneumonias show lobar or bronchopneumonia patterns.
- Tuberculosis, fungal, and viral pneumonias exhibit distinct interstitial or nodular opacities.
- Pneumocystis pneumonia often presents with diffuse ground-glass opacities.
Conclusions:
- Radiographic interpretation is crucial for diagnosing CAP.
- Recognizing specific imaging patterns aids in identifying the causative agent of pneumonia.
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