PMC5724924_01
A highly mobile structure was shown in the right atrium (arrow) on echocardiography.
NCI-4-270-g001.jpg
PMC5724924_01_NCI-4-270-g001.jpg
F1
A highly mobile structure attached in the proximity of the inferior vena cava and patent foramen ovale were observed on echocardiography (Fig. 1).
Intraoperative photograph showing a net-like structure, the Chiari network, attached to the opening of the inferior vena cava and coronary sinus (arrow).
NCI-4-270-g002.jpg
PMC5724924_01_NCI-4-270-g002.jpg
F2
Thereafter, the right atrium was opened, and a net-like structure localized at the opening of the inferior vena cava and coronary sinus Chiari network was observed (Fig. 2).