The chest x-rays show an anterior mediastinal mass. The left hilar area shows lobulated appearance with irregular edges and a peripheral rim of calcification. There is volume loss in the left hemithorax. There are additional findings of left lower lobe consolidation with collapse & a left pleural effusion.

The causes of anterior mediastinal mass are – 5 T’s

• Thymoma
• Teratoma
• Thyroid mass
• Terrible lymphoma
• Thoracic aortic aneurysm

Reference: Fundamentals of Diagnostic Radiology, Brant & Helms.