Splenic artery aneurysm
The splenic artery is the commonest site of visceral arterial aneurysm formation as well as the 3rd commonest site of aneurysm formation in the abdomino-pelvic region (after the aorta and iliac vessels). Aneurysms are usually saccular in configuration. They can either be in the form of a
More often they are detected incidentally on imaging for some other cause. Occasionally they can present acutely with a rupture 2.
The overall risk of rupture is thought to be ~ 2 - 10%. However in an event of rupture there is a relatively high mortality rate of ~ 36% 4.
Small aneurysms may be monitored. Coil embolisation is increasingly used to treat larger aneurysms.
- 1. Agrawal GA, Johnson PT, Fishman EK. Splenic artery aneurysms and pseudoaneurysms: clinical distinctions and CT appearances. AJR Am J Roentgenol. 2007;188 (4): 992-9. doi:10.2214/AJR.06.0794 - Pubmed citation
- 2. Mattick A, Gawthrope I. Splenic artery aneurysm rupture: case report of this uncommon presentation. BMJ Case Rep. 2009;2009 doi:10.1136/bcr.10.2008.1148 - Free text at pubmed - Pubmed citation
- 3. Owens CA, Yaghmai B, Aletich V et-al. Coil embolization of a wide-neck splenic artery aneurysm using a remodeling technique. AJR Am J Roentgenol. 2002;179 (5): 1327-9. AJR Am J Roentgenol (full text) - Pubmed citation
- 4. Liu Q, Lu JP, Wang F et-al. Visceral artery aneurysms: evaluation using 3D contrast-enhanced MR angiography. AJR Am J Roentgenol. 2008;191 (3): 826-33. doi:10.2214/AJR.07.3255 - Pubmed citation
Synonyms & Alternative Spellings
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|Splenic arterial aneurysm||✗|
|Splenic arterial aneurysms||✗|