Anomalous origin of the circumflex artery with retro-aortic course

Case contributed by Kamel Mahmoud Alkhateeb

Diagnosis certain

Citation, DOI, disclosures and case data

Citation:

Alkhateeb K, Anomalous origin of the circumflex artery with retro-aortic course. Case study, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-91388

DOI:

https://doi.org/10.53347/rID-91388

Permalink:

https://radiopaedia.org/cases/91388?iframe=true

rID:

91388

Disclosures:

At the time the case was submitted for publication Kamel Mahmoud Alkhateeb had no recorded disclosures.

View Kamel Mahmoud Alkhateeb's current disclosures

Case published:

15 Jan 2022

Revisions:

6 times, by 3 contributors - see full revision history and disclosures

Systems:

Cardiac

Institution:

Medeor 24/7 Hospital

Quiz mode:

Included

Presentation

Angina pectoris

Patient Data

Age: 50 years

Gender: Male

From the case: Anomalous origin of the circumflex artery with retro-aortic course

Anomalous origin and course of left circumflex artery (LCx) (type III): LCx originates from proximal right coronary RCA (just next to RCA origin from right coronary sinus). LCx has a retro-aortic course, passing between the aorta and left atrium. It is non-dominant and patent with no evidence of plaque or stenosis.

Case Discussion

An anomalous origin of the left circumflex artery from the right coronary sinus is the most common congenital variant and is divided into three types:

Type I: Separate ostia for right coronary artery (RCA) and LCX.
Type II: Common ostia in the right sinus.
Type III: LCX arising as a branch of the proximal RCA.

These patients may develop coronary symptoms due to kinking/compression of a retroaortic course.

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