case_images: PMC9995902_01
case_images: Electrocardiogram at onset. Atrial fibrillation with a rapid ventricular response. Incomplete right bundle branch block secondary to fast heart rate.
case_images: fped-11-1051041-g001.jpg
case_images: PMC9995902_01_fped-11-1051041-g001.jpg
case_images: F1
case_images: On electrocardiogram (ECG), AF was diagnosed, with a rapid ventricular response and incomplete right bundle branch block secondary to the fast heart rate (Figure 1).
case_images: Cardiac MRI. SSFP four-chambers view showing the extensive tumoral process in the left pulmonary area coming into close contact with the left atrium, with paraneoplastic pleural and pericardial effusions (A); and likely tumoral invasion of the left atrial wall on the late-gadolinium-enhanced acquisition (B). MRI, magnetic resonance imaging; SSFP, steady-state free precession.
case_images: fped-11-1051041-g002.jpg
case_images: PMC9995902_01_fped-11-1051041-g002.jpg
case_images: F2
case_images: Etiological investigation was completed by performing cardiac MRI, which showed tumoral invasion into the pericardium and the lateral wall of the left atrium (Figure 2).