Dense hilum sign
Last revised by Liz Silverstone on 24 Sep 2024
Citation, DOI, disclosures and article data
Citation:
Desai P, Silverstone L, Geetha Virupakshappa A, et al. Dense hilum sign. Reference article, Radiopaedia.org (Accessed on 06 Oct 2024) https://doi.org/10.53347/rID-5951
rID:
5951
Article created:
1 Apr 2009,
Paresh K Desai
Disclosures:
At the time the article was created Paresh K Desai had no recorded disclosures.
View Paresh K Desai's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Liz Silverstone had no financial relationships to ineligible companies to disclose.
View Liz Silverstone's current disclosures
Revisions:
11 times, by
9 contributors -
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The dense hilum sign suggests a pathological process at the hilum or in the lung anterior or posterior to the hilum. Malignancy, especially lung cancer, should be suspected. ICU patients may aspirate following extubation, typically into segment B6, overlying the hilum (B6 bronchus sign5).
Radiographic features
On a well-centered chest posteroanterior (PA) radiograph the density of the hilum is comparable on both sides. In the absence of calcification or lymphadenopathy, the hila should appear of equal density and be symmetric. The hilum overlay sign may be absent.
See also
References
- 1. Khan MIG. On Call Cardiology: On Call Series. Saunders. ISBN:1416025375. Read it at Google Books - Find it at Amazon
- 2. Armstrong P, Wilson AG, Dee P et-al. Imaging of diseases of the chest. Mosby-Year Book. ISBN:0815100116. Read it at Google Books - Find it at Amazon
- 3. Desai SR, Copley SJ, Aziz ZA et-al. Thoracic Imaging (Oxford Specialist Handbooks in Radiology). Oxford University Press, USA. ISBN:0199560471. Read it at Google Books - Find it at Amazon
- 4. Sosa, L, Shahir, K, Goodman, L, Dense Hilum Sign: An Important Sign with Multiple Meanings. Radiological Society of North America 2010 Scientific Assembly and Annual Meeting, November 28 - December 3, 2010 ,Chicago IL. http://archive.rsna.org/2010/9008968.html Accessed September 15, 2016
- 5. Friedman P. Radiology of the Superior Segment of the Lower Lobe: A Regional Perspective Introducing the B6 Bronchus Sign. Radiology. 1982;144(1):15-25. doi:10.1148/radiology.144.1.7089247 - Pubmed
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