27 July 2026
: Case report 
Transient Cardiac Dysfunction Due to New-Onset Mitral Chordal Rupture With Concomitant Congenital Absence of the Right Coronary Artery: A Case Report
Challenging differential diagnosis, Unusual setting of medical care, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Songyan Zhang E 1, Ying Cui F 1, Shucheng Li A 1*DOI: 10.12659/AJCR.952798
Am J Case Rep 2026; 27:e952798
Figure 4 Coronary angiography demonstrating congenital absence of the right coronary artery (RCA). Panels show (A) cranial view, (B) caudal view, (C) left anterior oblique view, and (D) nonselective aortic root injection demonstrating absence of the RCA ostium. The left circumflex artery is substantially enlarged and supplies the RCA territory.