Tabriz University of Medical Sciences Journal of Cardiovascular and Thoracic Research 2008-5117 15 3 2023 09 23 Distinguishing ‘dual’ from ‘duplicated’ right coronary artery: Revisiting the nomenclature 193 195 10.34172/jcvtr.2023.31753 EN Niraj Nirmal Pandey https://orcid.org/0000-0001-6786-8304 Aprateem Mukherjee Nitish Naik Priya Jagia https://orcid.org/0000-0001-5605-8672 Journal Article 10.34172/jcvtr.2023.31753 2023 02 25 2023 08 31 We report a case of a 53-year-old man with a "short RCA" seen coursing within the proximal part of the right atrioventricular (AV) groove and terminating in the mid-portion of the right AV groove and a "long RCA" seen to have a proximal course outside the right AV groove, over the free wall of the right ventricle, where it gave rise to the right ventricular and acute marginal branches before returning to the right AV groove in its distal course. The discussion highlights the need for revisiting the nomenclature of "dual RCA and drawing a distinction between "dual" and "duplicated" RCA.