Anomalous right coronary artery (ARCA) with interarterial course

Case contributed by Dr Erik Ranschaert


40-year old woman with atypical chest pain and normal stress test.

Patient Data

Age: 40
Gender: Female

See the description for each sequence. 

Case Discussion

This patient has an anomalous right coronary artery (ARCA) originating from the anterior side of the ascending aorta and coursing between the pulmonary trunk and ascending aorta (= inter-arterial course).  

An ARCA with inter-arterial course has a severe prognosis and is therefore referred to as malignant

Symptomatology is thought to be caused by the rising pressure within both the aorta and pulmonary artery during exercise, thereby compressing the anomalous coronary artery by a scissor-like mechanism.

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Case information

rID: 12423
Published: 23rd Nov 2010
Last edited: 6th Oct 2015
System: Cardiac, Vascular
Inclusion in quiz mode: Included

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