Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal lateral views of the chest . The lung volumes are low , which accentuates the bronchovascular structures . Additionally , fine details obscured by overlying soft tissue . Within these limitations , there is no pleural effusion , pneumothorax or focal airspace consolidation . Linear atelectasis is seen anteriorly on the lateral view . The cardiac silhouette remains moderately enlarged . The hilar structures and mediastinum are unremarkable . Calcifications are noted within the aortic arch . A left - sided pacemaker is unchanged in orientation .
    OUTPUT:
    
Low lung volumes without an acute cardiopulmonary process .