Reverse bat wing pulmonary opacities
Last revised by Henry Knipe on 19 Jan 2024
Citation, DOI, disclosures and article data
Citation:
Amini B, Knipe H, Silverstone L, et al. Reverse bat wing pulmonary opacities. Reference article, Radiopaedia.org (Accessed on 16 May 2024) https://doi.org/10.53347/rID-1979
Permalink:
rID:
1979
Article created:
2 May 2008,
Behrang Amini
Disclosures:
At the time the article was created Behrang Amini had no recorded disclosures.
View Behrang Amini's current disclosures
Last revised:
19 Jan 2024,
Henry Knipe ◉
Disclosures:
At the time the article was last revised Henry Knipe had the following disclosures:
- Integral Diagnostics, Shareholder (ongoing)
- Micro-X Ltd, Shareholder (ongoing)
These were assessed during peer review and were determined to not be relevant to the changes that were made.
View Henry Knipe's current disclosures
Revisions:
16 times, by
12 contributors -
see full revision history and disclosures
Systems:
Tags:
Synonyms:
- Reverse bat's wing appearance
- Reverse bat's wing pulmonary opacities
- Reverse batwing pulmonary opacities
- Reverse bat wing sign
- Reverse butterfly sign
- Reverse butterfly appearance
- Reverse butterfly pulmonary opacity
- Reverse butterfly pulmonary opacities
- Photographic negative shadow of pulmonary edema
- Reversed batwing sign
Reverse bat wing pulmonary opacities refer to peripheral opacities of the lungs, sparing the perihilar region. It is a relatively unusual appearance with a fairly narrow differential 1:
-
common
-
rare
pulmonary contusion: in the setting of trauma 3,4
pulmonary hemorrhage +/- infarction: in the context of pulmonary embolism 3
pneumonitis, e.g. radiation 4
References
- 1. Ella A. Kazerooni, Barry H. Gross. Cardiopulmonary Imaging. (2004) ISBN: 9780781736558 - Google Books
- 2. Gaensler E & Carrington C. Peripheral Opacities in Chronic Eosinophilic Pneumonia: The Photographic Negative of Pulmonary Edema. AJR Am J Roentgenol. 1977;128(1):1-13. doi:10.2214/ajr.128.1.1 - Pubmed
- 3. Dalpiaz G & Cancellieri A. Case-Based Glossary with Tips and Tricks. Atlas of Diffuse Lung Diseases. 2016;:251-89. doi:10.1007/978-3-319-42752-2_15
- 4. Kumar K, Vadala R, Talwar D. An Unusual Cause of "Reverse Batwing" Sign. Lung India. 2021;38(2):196-8. doi:10.4103/lungindia.lungindia_212_20 - Pubmed
- 5. Zare Mehrjardi M, Kahkouee S, Pourabdollah M. Radio-Pathological Correlation of Organizing Pneumonia (OP): A Pictorial Review. Br J Radiol. 2017;90(1071):20160723. doi:10.1259/bjr.20160723 - Pubmed