{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:08:26Z","timestamp":1760234906887,"version":"build-2065373602"},"reference-count":3,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2021,7,1]],"date-time":"2021-07-01T00:00:00Z","timestamp":1625097600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>The prevalence of isolated right coronary artery (RCA) absence ranges from 0.014% to 0.066% in the general population, but its combination with an absent left main (dual ostium left anterior descending [LAD] and super-dominant left circumflex [LCx]) has not been previously described. We report the case of a rare coronary artery anomaly: an absent RCA with LAD and LCx coronary arteries arising separately from the left coronary sinus. A 53-year-old male with recent COVID-19 infection was referred to our service for coronary computed tomography angiography (CCTA) due to the recent onset of atypical chest pain. The RCA was absent, with no vessel leaving the right or non-coronary sinus. The LAD and LCx emerged from the left coronary sinus, with a \u201cdouble-barrel\u201d appearance. The LAD was unremarkable, with small, non-stenosed calcified plaque. The LCx had a 3 mm diameter, arching downward in the left atrioventricular groove, passing through the crux cordis, continuing into the right atrioventricular groove, and ending as a left acute artery and sinonodal artery. No significant stenosis was found on any of the vessels, ruling out atherosclerotic coronary disease.<\/jats:p>","DOI":"10.3390\/diagnostics11071199","type":"journal-article","created":{"date-parts":[[2021,7,1]],"date-time":"2021-07-01T21:55:52Z","timestamp":1625176552000},"page":"1199","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Absence of Both Right and Left Main Coronary in a COVID Survivor"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5324-9780","authenticated-orcid":false,"given":"Marian","family":"Pop","sequence":"first","affiliation":[{"name":"Radiology Department, Tirgu Mures Emergency Institute for Cardiovascular Diseases and Heart Transplant, 540136 Tirgu Mures, Romania"},{"name":"ME1 Department, \u201cGeorge Emil Palade\u201d, University of Medicine, Pharmacy, Sciences and Technology of Tirgu Mures, 540142 Tirgu Mures, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8738-7281","authenticated-orcid":false,"given":"Krisztina","family":"Pal","sequence":"additional","affiliation":[{"name":"Cardiology Department, Tirgu Mures Emergency Institute for Cardiovascular Diseases and Heart Transplant, 540136 Tirgu Mures, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Diana","family":"Vaga","sequence":"additional","affiliation":[{"name":"Radiology Department, Tirgu Mures Emergency Clinical County Hospital, 540136 Tirgu Mures, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,7,1]]},"reference":[{"key":"ref_1","first-page":"1","article-title":"Isolated Single Coronary Artery: Diagnosis, Angiographic Classification, and Clinical Significance","volume":"130","author":"Lipton","year":"1979","journal-title":"Diagn. Radiol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"939","DOI":"10.1016\/j.amjcard.2019.06.012","article-title":"Prevalence and Anatomic Characteristics of Single Coronary Artery Diagnosed by Computed Tomography Angiography","volume":"124","author":"Michalowska","year":"2019","journal-title":"Am. J. Cardiol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"657","DOI":"10.1136\/hrt.2005.073668","article-title":"Unusual dominant course of left circumflex coronary artery with absent right coronary artery","volume":"92","author":"Kang","year":"2006","journal-title":"Heart"}],"container-title":["Diagnostics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2075-4418\/11\/7\/1199\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T06:24:54Z","timestamp":1760163894000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2075-4418\/11\/7\/1199"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,7,1]]},"references-count":3,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2021,7]]}},"alternative-id":["diagnostics11071199"],"URL":"https:\/\/doi.org\/10.3390\/diagnostics11071199","relation":{},"ISSN":["2075-4418"],"issn-type":[{"type":"electronic","value":"2075-4418"}],"subject":[],"published":{"date-parts":[[2021,7,1]]}}}