Transverse sinus mass misinterpreted as the source of cardiac emboli

Submitted: September 4, 2020
Accepted: November 13, 2020
Published: January 21, 2021
Abstract Views: 739
PDF: 322
Publisher's note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.


Due to the proximity of the transvers sinus (TS) to the left atrial appendage (LAA) and pulmonary veins (PV), a mass in the TS can be misinterpreted as a LAA or PV thrombus, and considered as a source of emboli in a patient with stroke or transient ischemic attack. The incorrect identification of a mass as a LAA thrombus would initiate unnecessary anticoagulation therapy or potentially, an evaluation for the excision of the mass if there is a concern about dislodgement. We are presenting a case illustrating this confusion and review the literature for similar cases.



PlumX Metrics


Download data is not yet available.


Giove GC, Singla I, Mishra J, Nanda NC. Transesophageal echocardiographic finding of left atrial appendage lobe mimicking a mass lesion. Echocardiography 2011;28:684-5.
Levy-Ravetch M, Auh YH, Rubenstein WA, et al. CT of the pericardial recesses. Am J Roentgenol 1985;144:707-14.
Karakus G, Kodali V, Inamdar V, et al. Comparative assessment of left atrial appendage by transesophageal and combined two- and three-dimensional transthoracic echocardiography. Echocardiography 2008;25:918-24.
Okura K, Maeno K, Okura S, Takemori H, et al. Pericardial fat volume is an independent risk factor for the severity of coronary artery disease in patients with preserved ejection fraction. J Cardiol 2015;65:37.41.
Albulushi A, Khan F, Al-Saidi K, Porter. T An unusual case of cardiac mass. Oman Med J 2018;33:176-7.

How to Cite

Allam, Hassan H., Abdulhalim J. kinsara, Amtalkhaliq Alrajawi, Tareq Tuaima, and Olga Vriz. 2021. “Transverse Sinus Mass Misinterpreted As the Source of Cardiac Emboli”. Monaldi Archives for Chest Disease 91 (1).