case_images: PMC10666182_01
case_images: (A) Preoperative transesophageal echocardiography shows a mobile right atrial mass (arrow) on the Eustachian valve. (B) Preoperative thoracic CT angiography showing the right atrial mass (arrow), right ventricle (RV), left atrium (LA), and left ventricle (LV). (C) Preoperative thoracic CT angiography showing pulmonary embolization (PE) on the inferior branch of the left pulmonary artery (arrow). (D) MRI imaging that shows a central mass enhancement (arrow) on the Eustachian valve.
case_images: fcvm-10-1268918-g001.jpg
case_images: PMC10666182_01_fcvm-10-1268918-g001.jpg
case_images: F1
case_images: Transesophageal echocardiography and thoracic CT angiography confirmed the presence of the right atrial mass and its location on the Eustachian valve (Figures 1A,B). Moreover, an incidental non-occlusive pulmonary embolism in the left inferior lobe pulmonary artery was diagnosed (Figure 1C). An MRI study confirmed the size and location of the mass in the RA and provided further evidence of central enhancement, which raised the suspicion of tumoral lesions (Figure 1D).
case_images: (A) Intraoperative findings of the right atrial mass attached to the Eustachian valve (arrow). (B) Intraoperative resected mass measuring approximately 2.5 cm x 2.1 cm.
case_images: fcvm-10-1268918-g002.jpg
case_images: PMC10666182_01_fcvm-10-1268918-g002.jpg
case_images: F2
case_images: The intraoperative findings revealed a 2.5 cm x 2.1 cm mass (Supplementary Video S1; Figures 2A,B) arising from the Eustachian valve and a preoperatively undiagnosed Chiari network in RA.