Bulging fissure sign (lobar consolidation)

Last revised by Ashesh Ishwarlal Ranchod on 11 Oct 2023

Citation, DOI, disclosures and article data

Citation:

Gaillard F, Ranchod A, Niknejad M, et al. Bulging fissure sign (lobar consolidation). Reference article, Radiopaedia.org (Accessed on 16 Apr 2024) https://doi.org/10.53347/rID-9228

DOI:

https://doi.org/10.53347/rID-9228

Permalink:

https://radiopaedia.org/articles/9228

rID:

9228

Article created:

25 Mar 2010, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was created Frank Gaillard had no recorded disclosures.

View Frank Gaillard's current disclosures

Last revised:

11 Oct 2023, Ashesh Ishwarlal Ranchod ◉

Disclosures:

At the time the article was last revised Ashesh Ishwarlal Ranchod had no financial relationships to ineligible companies to disclose.

View Ashesh Ishwarlal Ranchod's current disclosures

Revisions:

15 times, by 11 contributors - see full revision history and disclosures

Systems:

Chest

Sections:

Signs

Tags:

infectious disease

The bulging fissure sign refers to lobar consolidation where the affected portion of the lung is expanded, causing displacement of the adjacent fissure. Any type of pneumonia or space-occupying process can lead to bulging (sagging) fissure sign. Classically, it has been described in right upper lobe (RUL) consolidation secondary to Klebsiella pneumonia. It is now rarely seen due to prompt antibiotic therapy for suspected pneumonia.

The most common infective causative agents are ¹: