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Retroaortic Circumflex from the Right Cusp

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Okay, this next case is an incidental finding

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of an anomalous coronary in a 42 year old

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woman who was being evaluated for coronary artery disease and unlike

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the past two cases we've had this is

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an example of a benign coronary anomaly.

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You can see this is a vessel coming off the left cusp. It

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heads the anteriorly and it's going in the LED region.

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But we don't see a branch for the circumflex.

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Now when we get into the RCA, you see that the right corner comes off

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and then there's a separate second coronary artery arising here.

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And that's the circumflex and you can see that

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it has a separate origin from the right cornering cusp. This is

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a circle Flex from the right and you

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can see that it Dives down underneath and sort

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of behind the aortic root before heading over

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into the left AV Groove. So this is what we call a retro

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aortic course.

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So it's not the interracial course, which would be

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between the aorta and the polarity over here instead. It's

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basically going behind and under the order.

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The EV Groove and this is considered a benign anomaly.

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The other types of benign coronary anomalies that

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we can see you can also see a pre-pulmonic course of the LED where the

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LED comes out wraps around in front

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of the rvot into the LED region there.

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That's also benign anomaly.

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That we can sometimes see now one

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view that really kind of shows. This

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nicely is if you take a look on the NPR View

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and then align yourself with

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the vessel in this short

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axis plane. You can get a nice. Let me see if I

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can capture and go you can get this nice view here where you see

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the corner area is both the rising from the right cusp and

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then wrapping underneath

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Aorta this retro area course and then curving around

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in the EV grooves running sort of the mitral annulus

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here in the EB Groove. So nice image

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that you can get a news patients in

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the corners. Look normal. You certainly can develop cornea art

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or disease and these patients. I've seen some anomalous circumflex just

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like this with pretty severe coronary disease before so

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certainly something to keep an eye out for

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and unfortunately, they're a lot trickier to take

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care of because of the angulation of the vessels.

Report

Faculty

Stefan Loy Zimmerman, MD

Associate Professor of Radiology and Radiological Science

Johns Hopkins Medicine Department of Radiology and Radiological Science

Tags

Vascular

Congenital

Cardiac CT (SCCT Cat B1 Video Case)

Cardiac

CT