Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The aortic knob is calcified . Hilar contours are normal . There is no pulmonary vascular congestion . Moderate to large right pleural effusion is present , perhaps slightly increased in size compared to the previous study . There is adjacent right basilar atelectasis . Left lung is clear . No pneumothorax is identified . Mild loss of height of 2 adjacent vertebral bodies in the lower thoracic spine are age indeterminate .
    OUTPUT:
    
Moderate to large right pleural effusion with right basilar atelectasis . 2 mild lower thoracic compression deformities , of indeterminate age .