Pneumonia Microchapters |
Diagnosis |
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Treatment |
Case Studies |
Pneumonia CT On the Web |
American Roentgen Ray Society Images of Pneumonia CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Hamid Qazi, MD, BSc [2], Alejandro Lemor, M.D. [3]
A chest CT scan is not routinely done in patients with pneumonia, but is a diagnostic test that may be useful when a chest x-ray is not conclusive. CT findings may include lobar consolidation, ground-glass opacities, pleural effusion, lymphadenopathy, and tree-in-bud appereance.
CT Finding | Bacterial | Viral |
---|---|---|
No findings | 9% | 33% |
Focal Consolidation | 9% | 6% |
Pleural Effusion | 41% | 22% |
Ground-glass Opacity | 45% | 22% |
Tree-in-bud Appereance | 14% | 31% |
Bronchial Wall Thickening | 27% | 31% |
Multifocal Consolidation | 36% | 27% |
Adapted from American Journal of Roentgenology. 2011;197: 1088-1095[2] |