PMC9829016_01
(A) Coronary angiography showing a patent RCA originating from the LCC. (B) Computed tomography angiography showed the RCA originating from the LCC with an inter-arterial course, a slit-like orifice, and minimal intramural segment. LCC, left coronary cusp; RCA, right coronary artery
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PMC9829016_01_3692_Fig1.jpg
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Coronary angiography and ascending aortography were then performed, which revealed a patent RCA originating from the left coronary cusp (Fig. 1A). CT heart angiography with reconstruction revealed the RCA ostium in the left coronary cusp with a malignant course between the aorta and pulmonary artery and a slit-like orifice, without an obvious intramural segment (Figs. 1B and 2).
Computed tomography three-dimensional reconstruction showing both the left main and right coronary arteries originating from the left coronary cusp
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PMC9829016_01_3692_Fig2.jpg
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CT heart angiography with reconstruction revealed the RCA ostium in the left coronary cusp with a malignant course between the aorta and pulmonary artery and a slit-like orifice, without an obvious intramural segment (Figs. 1B and 2).