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Malignant Right Coronary Artery Anomaly Simulated by Motion Artifacts on MDCT

Marcus Katoh1, Joachim E. Wildberger1, Rolf W. Günther1 and Arno Buecker1

1 Department of Diagnostic Radiology, University Hospital Aachen, University of Technology (RWTH), Pauwelsstrasse 30, Aachen 52057, Germany.



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  		Fig. 1A —Axial MDCT scans through ascending aorta (AA) obtained with 16-MDCT scanner in 25-year-old man with testicular neoplasia. Note artifact in front of aortic root simulating interarterial course of right coronary artery (RCA) (arrow). Another motion artifact can be seen behind aortic root. DA = descending aorta, LA = left atrium; PA = pulmonary artery.

 


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  		Fig. 1B —Axial MDCT scans through ascending aorta (AA) obtained with 16-MDCT scanner in 25-year-old man with testicular neoplasia. Prior CT image shows normal RCA originating from right sinus of Valsalva (arrow).

 


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  		Fig. 2A —66-year-old woman with breast cancer. MDCT scan shows artifact in left anterior position simulating malignant variant of right coronary artery (RCA) (arrow).

 


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  		Fig. 2B —66-year-old woman with breast cancer. Coronary MR angiogram shows normal proximal course of RCA (arrow).

 

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