Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest were acquired . Ill - defined opacities at the medial right lung base are not significantly changed compared to radiographs from ___ , most likely atelectasis and / or scarring . There are no focal consolidations concerning for pneumonia . The cardiac and mediastinal contours are stable with left ventricular configuration . There are no pleural effusions . No pneumothorax is seen . Multilevel degenerative changes of the thoracic spine are noted .
    OUTPUT:
    
No acute cardiac or pulmonary process .