Right aortic arch with aberrant left innominate artery arising from Kommerell's diverticulum

We report a case of an uncommon thoracic aorta anomaly-right aortic arch with aberrant left innominate artery arising from Kommerell's diverticulum-that went undiagnosed until adulthood.

Keywords:
Right aortic arch; Left innominate artery; Kommerell's diverticulum

Authorship

Ângela Faistauer Mailing address: Dra. Ângela Faistauer. Rua Garibaldi, 1171, comp. 602, Floresta. Porto Alegre, RS, Brazil, 90035-971. E-mail: angelafaistauer@gmail.com.

MD, Radiologist at the Hospital Escola da Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil.Universidade Federal de PelotasBrazilPelotas, RS, BrazilMD, Radiologist at the Hospital Escola da Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil.

Felipe Soares Torres

PhD, MD, Radiologist in the Radiology Department of the Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil.Hospital de Clínicas de Porto AlegreBrazilPorto Alegre, RS, BrazilPhD, MD, Radiologist in the Radiology Department of the Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil.

Carlo Sasso Faccin

MD, Radiologist at the Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil.Hospital de Clínicas de Porto AlegreRSPorto Alegre, RSMD, Radiologist at the Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil.

Mailing address: Dra. Ângela Faistauer. Rua Garibaldi, 1171, comp. 602, Floresta. Porto Alegre, RS, Brazil, 90035-971. E-mail: angelafaistauer@gmail.com.

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (3)

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Figure 1
A: Posteroanterior chest X-ray showing right aortic arch (arrow) and widening of the superior mediastinum on the left (arrowhead), probably due to vascular ectasia. B: Contrast-enhanced radiographic study of the esophagus showing extrinsic compression of the middle third of the esophagus (arrow), at the level of the aortic arch.

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Figure 2
Computed tomography angiography of the chest, in the axial plane. A: Right aortic arch (thick arrow), identifying Kommerell's diverticulum on the left (thin arrow), resulting in anterior displacement of the esophagus (arrowhead). B: Image with a section that is more cranial than that in A, showing Kommerell's diverticulum that gives rise to the left common carotid and subclavian arteries (arrow).

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Figure 3
A: Chest computed tomography angiography, maximum intensity projection reconstruction, in the coronal plane, showing right aortic arch (thin white arrow) and Kommerell's diverticulum (white arrowhead), giving rise to the left common carotid artery (thin black arrow) and left subclavian artery (black arrowhead). B: Threedimensional reconstruction with superoposterior view of the aorta and great vessels showing the aortic arch on the right (thick arrow) with aberrant left innominate artery originating from Kommerell's diverticulum (thin arrow).

Figure 1 A: Posteroanterior chest X-ray showing right aortic arch (arrow) and widening of the superior mediastinum on the left (arrowhead), probably due to vascular ectasia. B: Contrast-enhanced radiographic study of the esophagus showing extrinsic compression of the middle third of the esophagus (arrow), at the level of the aortic arch.

Figure 2 Computed tomography angiography of the chest, in the axial plane. A: Right aortic arch (thick arrow), identifying Kommerell's diverticulum on the left (thin arrow), resulting in anterior displacement of the esophagus (arrowhead). B: Image with a section that is more cranial than that in A, showing Kommerell's diverticulum that gives rise to the left common carotid and subclavian arteries (arrow).

Figure 3 A: Chest computed tomography angiography, maximum intensity projection reconstruction, in the coronal plane, showing right aortic arch (thin white arrow) and Kommerell's diverticulum (white arrowhead), giving rise to the left common carotid artery (thin black arrow) and left subclavian artery (black arrowhead). B: Threedimensional reconstruction with superoposterior view of the aorta and great vessels showing the aortic arch on the right (thick arrow) with aberrant left innominate artery originating from Kommerell's diverticulum (thin arrow).

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Publicação do Colégio Brasileiro de Radiologia e Diagnóstico por Imagem Av. Paulista, 37 - 7º andar - conjunto 71, 01311-902 - São Paulo - SP, Tel.: +55 11 3372-4541, Fax: 3285-1690, Fax: +55 11 3285-1690 - São Paulo - SP - Brazil
E-mail: radiologiabrasileira@cbr.org.br

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