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case_images: (A) Electrocardiogram. ST-segment elevation in lead aVR and ST-segment depression in leads II, III, aVF, and V4-V6. (B) Coronary angiogram. There was no evidence of coronary artery occlusion or stenosis.
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case_images: Post-resuscitated electrocardiogram demonstrated ST-segment elevation in aVR and ST-segment depression in II, III, aVF, and V4-V6 (Figure 1A). A subsequent coronary angiography revealed patent coronary arteries without any evidence of coronary stenosis or thrombotic occlusion (Figure 1B).
case_images: (A) Contrast-enhanced computed tomography. A mass on the left coronary cusp (arrow). (B) Transoesophageal echocardiogram. Intermittent obstruction of the left coronary artery ostium occurred due to the transient proximity of the mobile mass (10 x 10 x 8 mm) (circle).
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case_images: Autopsy (macroscopic). The mass was discovered on the left coronary cusp (circle).
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case_images: An autopsy revealed a pedunculated mass, anchored to the left coronary cusp of the aortic valve (Figure 3).
case_images: Autopsy (microscopic, haematoxylin eosin stain). (A) There were no bacterial presence, and the mass was characterized by a lack of structural organization. (B) The mass consisted of white clots made up of platelets and fibrin.
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case_images: The mass was characterized by a lack of structural organization and was predominantly composed of platelets (Figure 4).
case_images: Myocardial ischaemia. The scar was identified on the anterior, lateral, and posterior walls of the left ventricle.
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case_images: Additionally, a scar was identified on anterior and lateral walls of the left ventricle (Figure 5), indicative of myocardial ischaemia associated with the left coronary artery.