Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Minimal left mid lung at atelectasis / scarring is seen . There is slight blunting of the posterior left costophrenic angle , and a trace pleural effusion may be present . Cardiac silhouette is mildly enlarged . The aorta is calcified . No overt pulmonary edema is seen . No definite focal consolidation .
    OUTPUT:
    
Slight blunted left costophrenic angle posteriorly may be due to a trace pleural effusion . No focal consolidation . Left mid lung linear atelectasis / scarring . Mild cardiomegaly .