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Case Reports
. 2020 Sep 24;13(9):e239033.
doi: 10.1136/bcr-2020-239033.

Silhouette sign revisited

Affiliations
Case Reports

Silhouette sign revisited

Sharath P Madhyastha et al. BMJ Case Rep. .
No abstract available

Keywords: medical management; pneumonia (infectious disease); pneumonia (respiratory medicine); radiology.

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Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
A frontal radiograph of the chest showing airspace opacity in the right lower lung zone. Note that the right heart border is lost and the right dome of diaphragm is well seen.
Figure 2
Figure 2
CT of thorax (A: Coronal, B: Sagittal views) showing consolidatory changes with air bronchograms and small cavitation (due to breakdown of consolidation) involving right middle lobe.

References

    1. Felson B, Felson H. Localization of intrathoracic lesions by means of the postero-anterior roentgenogram; the silhouette sign. Radiology 1950;55:363–74. 10.1148/55.3.363 - DOI - PubMed
    1. Murfitt J. The normal chest : Sutton D, Textbook of radiology and imaging. Edinburgh: Churchill Livingstone, 1999: 299–353.
    1. Algın O, Gökalp G, Topal U. Signs in chest imaging. Diagn Interv Radiol 2011;17:18–29. 10.4261/1305-3825.DIR.2901-09.1 - DOI - PubMed

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