Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . There is a right - sided PICC , terminating in the proximal SVC , without evidence of pneumothorax . The cardiac silhouette is mildly enlarged . The aortic knob is calcified . No large pleural effusion is seen , although a trace right pleural effusion is difficult to exclude . No definite focal consolidation is seen . No pulmonary edema is seen .
    OUTPUT:
    
Mild enlargement of the cardiac silhouette . Slight blunting of the right costophrenic angle may be due to atelectasis and skinfold ; however , a trace pleural effusion is difficult to exclude .