Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , as on prior and there is mild right basilar atelectasis . Left - sided AICD with single lead following its expected course to the right ventricle . There is no focal consolidation , large effusion or pneumothorax . No central vascular congestion or overt pulmonary edema . Moderate cardiomegaly is unchanged .
    OUTPUT:
    
No acute intrathoracic process .