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Case Reports
. 2016 Jun 23:2016:bcr2016216551.
doi: 10.1136/bcr-2016-216551.

Luftsichel sign

Sankar Neelakantan  1 , Rakesh Anandarajan  1 , Anil Kumar Swamy  1 , Ravi Hoisala  1
Affiliations
Case Reports

Luftsichel sign

Sankar Neelakantan et al. BMJ Case Rep. .
No abstract available

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Figures

Figure 1
Figure 1
Frontal radiograph showing a veil-like homogenous opacity over the left lung field extending out from the hilum and fading out inferiorly. The aortic knuckle (star) is silhouetted by an adjacent hyperlucent air crescent. These findings are suggestive of the Luftsichel sign.
Figure 2
Figure 2
CT scannogram (penetrated radiograph) clearly delineating the air crescent (arrows) outlining the aortic knuckle (star).
Figure 3
Figure 3
Coronal and sagittal sections of the contrast-enhanced CT of the chest showing a collapsed left upper lobe pulling the major fissure anterosuperiorly (arrows) and compensatory hyperinflation of the superior segment of the left lower lobe (star), which is noted to insinuate itself between the superior mediastinum and the collapsed left upper lobe.
Figure 4
Figure 4
Axial section of the contrast-enhanced CT of the chest showing a left hilar enhancing soft tissue mass causing complete occlusion of the left upper lobe bronchus.
See this image and copyright information in PMC

References

    1. Blankenbaker DG. The luftsichel sign. Radiology 1998;208:319–20. doi:10.1148/radiology.208.2.9680553 - DOI - PubMed
    1. Singh S, Singh N, Tikkiwal S. Luftsichel sign. Lung India 2012;29:83–4. doi:10.4103/0970-2113.92373 - DOI - PMC - PubMed

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