Bacterial pneumonia CT: Difference between revisions
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=CT Scan= | =CT Scan= | ||
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!'''Type of Pneumonia''' | |||
!'''Common Organisms''' | |||
!'''CT Scan''' | |||
!'''Findings''' | |||
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|Lobar/ Focal non-segmental<ref name="Radiopaedia Lobar">{{cite web|url=https://radiopaedia.org/articles/lobar-pneumonia}}</ref> | |||
|[[Klebsiella pneumoniae|''Klebsiella pneumoniae'']] | |||
[[Legionella pneumophila|''Legionella pneumophila'']] | |||
[[Haemophilus influenzae|''Haemophilus influenzae'']] | |||
|[[Image:Lobar-pneumonia-CT-findings.jpg|centre|300x300px|Lobar pneumonia - Case courtesy of Dr Chris O'Donnell, Radiopaedia.org, rID: 32998|alt=|thumb]][[Image:Pneumococcal-pneumonia-complication-parapneumonic-effusion-1.png|centre|300x300px|Pneumococcal Pneumonia (complication: parapneumonic effusion) - Case courtesy of Dr Henry Knipe, Radiopaedia.org, rID: 44224|alt=|thumb]] | |||
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* Focal dense opacification of the majority of an entire lobe | |||
* Relative sparing of the large airway | |||
* Ground glass opacity appearance in a lobar or segmental pattern | |||
|- | |||
|Lobular/ Multifocal Bronchopneumonia<ref name="Radiopaedia Bronchopneumonia">{{cite web|url=https://radiopaedia.org/articles/bronchopneumonia?lang=us}}</ref> | |||
|[[Staphylococcus aureus|''Staphylococcus aureus'']] | |||
[[Klebsiella pneumoniae|''Klebsiella pneumoniae'']] | |||
[[Haemophilus influenzae|''Haemophilus influenzae'']] | |||
[[Pseudomonas aeruginosa|''Pseudomonas aeruginosa'']] | |||
[[Escherichia coli|''Escherichia coli'']] | |||
|[[Image:BronchopneumoniaCT.jpg|300x300px|Bronchopneumonia CT - Case courtesy of Dr Ayush Goel, Radiopaedia.org, rID: 33116|alt=|center|thumb]][[Image:Tree-in-bud-002.jpg|300x300px|Bronchopneumonia CT (Tree in Bud) - Case courtesy of The Radswiki, Radiopaedia.org, rID: 12039|alt=|center|thumb]][[Image:Tree-in-bud-001.jpg|300x300px|Bronchopneumonia CT (Tree in Bud: Enhanced) - Case courtesy of The Radswiki, Radiopaedia.org, rID: 12039|alt=|center|thumb]] | |||
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* Multiple foci of opacity in a lobular pattern | |||
* Tree in Bud appearance | |||
* Larger ares of consolidation may appear as a 'patchwork quilt' | |||
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|Diffuse/ Interstitial (Atypical)<ref name="Radiopaedia Interstitial">{{cite web|url=https://radiopaedia.org/articles/atypical-pneumonia?lang=us}}</ref> | |||
|''[[Mycoplasma]]'' | |||
[[Chlamydophila pneumoniae|''Chlamydophila pneumoniae'']] | |||
[[Chlamydophila psittaci|''Chlamydophila psittaci'']] | |||
''[[Legionella]]'' | |||
|[[Image:Atypical pneumonia.jpg|300x300px|Atypical pneumonia - Case courtesy of Dr Mostafa El-Feky, Radiopaedia.org, rID: 75400|alt=|center|thumb]] | |||
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* Focal ground glass opacity appearance (in a centrilobular pattern) | |||
* Diffuse and bilateral (in most cases) | |||
* Bronchial wall thickening | |||
* Segmental atelectasis from small airway obstruction may occur | |||
* Radiological findings are often more pronounced than the patients appearance | |||
* [[Mycoplasma]] pneumoniae: airspace consolidation | |||
* [[Legionella]] pneumophila: residual scarring may persist | |||
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==References== | ==References== | ||
Revision as of 11:40, 10 January 2022
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Bacterial pneumonia Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Bacterial pneumonia CT On the Web |
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American Roentgen Ray Society Images of Bacterial pneumonia CT |
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Risk calculators and risk factors for Bacterial pneumonia CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Arooj Naz
Overview
CT scans are not a primary modality of testing for bacterial pneumonia. It is utilized in complex cases where the cause is unknown[1] and when empiric antibiotic use yields no symptomatic relief. The information retrieved through CT scans can be useful in differentiating infectious and noninfectious pneumonia.[2]
CT Scan
| Type of Pneumonia | Common Organisms | CT Scan | Findings |
|---|---|---|---|
| Lobar/ Focal non-segmental[3] | Klebsiella pneumoniae |   |
|
| Lobular/ Multifocal Bronchopneumonia[4] | Staphylococcus aureus |    |
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| Diffuse/ Interstitial (Atypical)[5] | Mycoplasma |  |
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References
- ↑ "StatPearls". 2021. PMID 30020693.
- ↑ Murata K, Takahashi M, Furukawa A, Itoh R, Yamasaki M, Sho K; et al. (1999). "[CT findings of pulmonary infections]". Nihon Igaku Hoshasen Gakkai Zasshi. 59 (8): 371–9. PMID 10459281.
- ↑ https://radiopaedia.org/articles/lobar-pneumonia. Missing or empty
|title=(help) - ↑ https://radiopaedia.org/articles/bronchopneumonia?lang=us. Missing or empty
|title=(help) - ↑ https://radiopaedia.org/articles/atypical-pneumonia?lang=us. Missing or empty
|title=(help)