Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly stable . No pulmonary vascular congestion or pulmonary edema . No pleural effusion . Patchy bibasilar opacities likely reflect atelectasis , which appears chronic . No focal consolidation to suggest pneumonia .
    OUTPUT:
    
Similar appearance of the lungs ___ , with patchy bibasilar opacities reflecting atelectasis rather than pneumonia . Given the chronic nature of the atelectasis , consider evaluation for chronic causes of atelectasis including endobronchial lesions or diaphragmatic pathology .