Ductus diverticulum
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At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosuresAt the time the article was last revised Andrea Molinari had no financial relationships to ineligible companies to disclose.
View Andrea Molinari's current disclosures- Aortic ductus diverticulum
- Ductus bump
- Ductus diverticula
- Ductus bumps
- Aortic ductus diverticula
Aortic ductus diverticulum is a developmental outpouching of the thoracic aorta which may be mistaken for an acute aortic injury.
Gross anatomy
It is usually seen at the anteromedial aspect of the aorta at the site of the aortic isthmus, where the ligamentum arteriosum attaches. It is also the site of the majority (~90%) of post-traumatic aortic injuries as the ligamentum arteriosum is one of the points to which the thoracic aorta is tethered; therefore, differentiation of ductus diverticulum from traumatic pseudoaneurysm is vitally important.
In contrast to an aortic pseudoaneurysm, which usually forms sharp margins with the aorta, the ductus diverticulum usually appears as a smooth focal bulge with gentle obtuse angles with the aortic wall.
Types
Ductus diverticula are divided into:
-
classic
smooth gentle shoulders
33% newborns
9% adults
-
atypical
sharper with a shorter and steeper superior slope
Differential diagnosis
aortic spindle - circumferential dilatation just distal to the isthmus
descending aortic diverticulum - due to an incomplete double aortic arch
For differentiating features, see aortic pseudoaneursym versus ductus diverticulum.
References
- 1. Batra P, Bigoni B, Manning J et al. Pitfalls in the Diagnosis of Thoracic Aortic Dissection at CT Angiography. Radiographics. 2000;20(2):309-20. doi:10.1148/radiographics.20.2.g00mc04309 - Pubmed
- 2. Goodman P, Jeffrey R, Minagi H, Federle M, Thomas A. Angiographic Evaluation of the Ductus Diverticulum. Cardiovasc Intervent Radiol. 1982;5(1):1-4. doi:10.1007/BF02552093 - Pubmed
- 3. Grollman J. The Aortic Diverticulum: A Remnant of the Partially Involuted Dorsal Aortic Root. Cardiovasc Intervent Radiol. 1989;12(1):14-7. doi:10.1007/BF02577119 - Pubmed
- 4. Ferrera P & Ghaemmaghami P. Ductus Diverticulum Interpreted as Traumatic Aortic Injury. Am J Emerg Med. 1997;15(4):371-2. doi:10.1016/s0735-6757(97)90128-5 - Pubmed
Incoming Links
- Stanford type B aortic dissection
- Ductus diverticulum
- Epithelioid mesothelioma
- Diaphragmatic rupture and ductus diverticulum
- Incomplete double aortic arch
- Large ductus diverticulum or ductus arteriosus aneurysm
- Multitrauma: intracranial, spinal, thoracic and pelvic injuries
- Traumatic aortic injury and bowel injury
- Ductus diverticulum
- Ductus arteriosus aneurysm
- Ductus diverticulum
- Aortic ductus diverticulum
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aortic root
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