Accessory left atrial appendage
Last revised by Daniel J Bell on 27 May 2022
Citation, DOI, disclosures and article data
Citation:
St-Amant M, Bell D, Feger J, et al. Accessory left atrial appendage. Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-23957
rID:
23957
Article created:
20 Jul 2013,
Maxime St-Amant ◉
Disclosures:
At the time the article was created Maxime St-Amant had no recorded disclosures.
View Maxime St-Amant's current disclosures
Last revised:
27 May 2022,
Daniel J Bell ◉
Disclosures:
At the time the article was last revised Daniel J Bell had no financial relationships to ineligible companies to disclose.
View Daniel J Bell's current disclosures
Revisions:
7 times, by
7 contributors -
see full revision history and disclosures
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- Accessory left atrial appendages
An accessory left atrial appendage is a frequent fortuitous finding in cardiac imaging, encountered in ~10% of patients. They are more often seen as a small diverticular structure projecting from the right upper side of the left atrial wall.
Differential diagnosis
- it must not be confused with interatrial septal aneurysm
- also consider a left atrial diverticulum
References
- 1. Abbara S, Mundo-sagardia JA, Hoffmann U et-al. Cardiac CT assessment of left atrial accessory appendages and diverticula. AJR Am J Roentgenol. 2009;193 (3): 807-12. doi:10.2214/AJR.08.2229 - Pubmed citation
- 2. Lee WJ, Chen SJ, Lin JL et-al. Images in cardiovascular medicine. Accessory left atrial appendage: a neglected anomaly and potential cause of embolic stroke. Circulation. 2008;117 (10): 1351-2. doi:10.1161/CIRCULATIONAHA.107.744706 - Pubmed citation
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