Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded except for mild atelectasis at the lung bases . Opacities project over the spine on the lateral radiograph . The heart is slightly smaller since the study of ___ , however there is still moderate cardiomegaly . There is no pleural effusion or pneumothorax . There is no pulmonary edema . Mild rightward deviation of the trachea is likely secondary to known enlargement of the thyroid , left greater than right .
    OUTPUT:
    
Moderate cardiomegaly smaller since the prior study . Opacity projecting over the spine on the lateral radiograph may reflect pneumonia .