Multimodality Imaging of a Mass Arising from a Cor Triatriatum Sinister Membrane

Tomas V Gonzalez; Candice A Bookwalter; Christopher J François

doi:10.1148/ryct.230225

Multimodality Imaging of a Mass Arising from a Cor Triatriatum Sinister Membrane

Radiol Cardiothorac Imaging. 2024 Feb;6(1):e230225. doi: 10.1148/ryct.230225.

Authors

Tomas V Gonzalez¹, Candice A Bookwalter¹, Christopher J François¹

Affiliation

¹ From the Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905.

Abstract

Cor triatriatum sinister is a rare entity characterized by a membrane within the left atrium and posterior to the atrial appendage. This defect may cause obstructive symptoms analogous to mitral stenosis. The authors present a case of an incidentally detected enhancing mass originating from a cor triatriatum sinister membrane, with imaging characteristics most suggestive of myxoma. Keywords: MR Imaging, Cardiac, Left Atrium, Congenital, CT Angiography, Echocardiography Supplemental material is available for this article.

Keywords: CT Angiography; Cardiac; Congenital; Echocardiography; Left Atrium; MR Imaging.

Publication types

Case Reports

MeSH terms

Computed Tomography Angiography
Cor Triatriatum* / diagnostic imaging
Heart Atria
Heart Defects, Congenital*
Humans
Multimodal Imaging