CTICasesRight Aortic Arch with Mirror-Image Branching and Right-Sided Ligamentum Arteriosum
[...]. Right Aortic Arch with Mirror-Image Branching and Right-Sided Ligamentum Arteriosum. CTICases. Published March 24, 2017. https://str-case-explorer.pages.dev/c/u3wgz
Imaging findings
Chest CT shows a right-sided aortic arch with mirror-image branching (three-vessel arch containing a left brachiocephalic, right common carotid, and right subclavian artery) in a patient with normal visceral situs and a right-sided superior vena cava. Sagittal and coronal reformats demonstrate a distinct ductus/ligamentum bump originating from the inner aspect of the right arch and extending directly to the right pulmonary artery, confirming a right-sided ligamentum arteriosum.
Key takeaways
Although right aortic arches are usually associated with a left-sided ligamentum arteriosum, some cases may exhibit a right-sided ligamentum. A right aortic arch with mirror-image branching is typically associated with congenital heart disease, but can occasionally be seen in asymptomatic adults without intracardiac anomalies.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Post-Traumatic Aortic PseudoaneurysmAorta & Arteries
- Takayasu ArteritisAorta & Arteries
- Pericardial Anaplastic Large Cell LymphomaMasses
- Carney Triad with Extra-Adrenal Paraganglioma and Pulmonary ChondromasNeoplastic
- Recurrent Testicular Cancer with Mediastinal LymphadenopathyNeoplastic
- Double Aortic Arch with Atretic SegmentAorta & Arteries
- Right Aortic Arch with Aberrant Left Subclavian Artery and Kommerell's DiverticulumAorta & Arteries
- Anomalous Right Coronary Artery from the Pulmonary Artery (ARCAPA) and Patent Ductus ArteriosumCoronary
See all cases from March 24, 2017 →
Related Aorta & Arteries cases
- Penetrating Atherosclerotic Aortic Ulcer with Intramural Hematoma
- Mycotic Aneurysm (Streptococcus pneumoniae Aortitis)
- Iatrogenic Brachiocephalic Artery to Innominate Vein Fistula
- Type A Aortic Dissection with False Lumen Thrombus
- Traumatic Aortic Pseudoaneurysm
- Aneurysm of an Aberrant Right Subclavian Artery