Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . Moderate cardiomegaly , similar to prior . Calcification of the aortic knob is present . Calcified right upper lung nodule is similar to ___ . No focal consolidation , pleural effusion , or pneumothorax . Wires of left chest wall pacer terminate in similar position to prior . Sternotomy wires are intact .
    OUTPUT:
    
No evidence for acute cardiopulmonary process .