A 61-year-old female with intermittent chest discomfort and an inconclusive exercise
treadmill test was submitted for a non-invasive coronary angiography with 128-multidetector
computed tomography (MDCT) with prospective triggering (1.7 mSv). The coronary arteries were free of atherosclerotic coronary artery disease (CAD).
However, MDCT clearly demonstrated a congenital anomaly of the coronary arteries,
with absence of the left coronary ostium and left main trunk (black arrow). A dominant
right coronary artery (RCA) provided blood supply via conus branch (white arrow) to
the left anterior descending (LAD) and left circumflex (Cx) arteries, which were located
at their normal position. The conus branch (white arrow) coursed anteriorly to the
main pulmonary artery. Subsequent invasive coronary angiography confirmed the MDCT
findings.
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Article info
Publication history
Accepted:
October 7,
2009
Received:
September 30,
2009
Identification
Copyright
© 2009 Published by Elsevier Inc.
