Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is re- demonstrated . Mediastinal contours are stable , with the calcified and tortuous thoracic aorta again noted . There is mild pulmonary vascular congestion , with no pleural effusion , focal consolidation or pneumothorax demonstrated . Minimal atelectatic changes are also likely seen at the lung bases . Fusion hardware within the cervical spine and right shoulder arthroplasty are partially imaged . There are no acute osseous abnormalities demonstrated .
    OUTPUT:
    
Mild pulmonary vascular congestion and bibasilar atelectasis .