Figures
![Figure 1.](/tables/cr1473-g001.jpg)
Figure 1. Patient’s initial ECG on admission showing atrial fibrillation with RVR. ECG: electrocardiogram; RVR: rapid ventricular rate.
![Figure 2.](/tables/cr1473-g002.jpg)
Figure 2. Repeat ECG 2 h after diltiazem administration showing return to normal sinus rhythm. ECG: electrocardiogram.
![Figure 3.](/tables/cr1473-g003.jpg)
Figure 3. Chest X-ray on admission showing large centrally located right lung mass.
![Figure 4.](/tables/cr1473-g004.jpg)
Figure 4. CTPA with IV contrast showing an approximately 9.6 × 8.0 cm mass in right lung. CTPA: computed tomography pulmonary angiography.
![Figure 5.](/tables/cr1473-g005.jpg)
Figure 5. CTPA with IV contrast showing right hilar lymphadenopathy. CTPA: computed tomography pulmonary angiography.
![Figure 6.](/tables/cr1473-g006.jpg)
Figure 6. CTPA with IV contrast showing mediastinal lymphadenopathy. CTPA: computed tomography pulmonary angiography.
![Figure 7.](/tables/cr1473-g007.jpg)
Figure 7. TEE showing mass protruding from PV into LA. PV: pulmonary vein; LA: left atrium; RV: right ventricle; TEE: transesophageal echocardiogram.