Transverse sinus mass misinterpreted as the source of cardiac emboli


  • Hassan H. Allam King Abdullah Medical Complex, Ministry of Health, Jeddah, Saudi Arabia.
  • Abdulhalim J. kinsara | Department of Cardiology, Ministry of National Guard-Health Affairs, King Saud Bin Abdulaziz University for Health Sciences, COM-WR, King Abdullah International Medical Research Center, Jeddah, Saudi Arabia.
  • Amtalkhaliq Alrajawi King Abdullah Medical Complex, Ministry of Health, Jeddah, Saudi Arabia.
  • Tareq Tuaima King Abdullah Medical Complex, Ministry of Health, Jeddah, Saudi Arabia.
  • Olga Vriz Heart Centre, King Faisal Specialist Hospital and Research Center, Alfaisal University, Riyadh, Saudi Arabia.


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.


Cardiology - Case Reports
Transverse sinus mass, cardiac emboli, left atrial appendage mass
  • Abstract views: 233

  • PDF: 67
  • VIDEO: 0
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).

Most read articles by the same author(s)