title: Total occlusion of the circumflex artery with collateral supply from the conus artery.
abstract: The conus artery has long been recognized as an important source of collateral blood supply to a significantly diseased left anterior descending artery. This artery which arises 50% of the time from a separate orifice in the right sinus of Valsalva may also provide collateral circulation to a diseased right coronary artery. To date, there have been no reported instances of the conus artery supplying collateral flow to a totally occluded circumflex artery. In this report we describe such a case in a patient with severe three vessel disease. The implications of such a finding in patient management are also discussed.
authors.affiliation: Department of Radiology, Hamilton General Hospital, McMaster University, Ontario, Canada.
authors.forename: G J
authors.initials: GJ
authors.lastname: Mishkel
authors.forename: E
authors.initials: E
authors.lastname: Biagioni
authors.forename: H
authors.initials: H
authors.lastname: Stolberg
mesh_terms: D000792:Angiography; D003097:Collateral Circulation / Q000502:physiology*; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology*; D003331:Coronary Vessels / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged