CT Demonstration of the Extracardiac Anastomoses of the Coronary Veins in Superior Vena Cava or Left Brachiocephalic Vein Obstruction
A 70 year old male, with metastatic renal cell carcinoma and SVC syndrome, underwent a CT angiogram for suspected pulmonary embolism (PE). The scan showed a large nodal mass occluding the SVC above and below the azygos arch. The lower third of the LBCV was also occluded. No evidence of PE was found.