Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is re- demonstrated . The aorta is diffusely calcified . Lung volumes are low with crowding of the bronchovascular structures . There is mild pulmonary vascular congestion . Patchy opacities are seen within the right lung base which may reflect atelectasis , but aspiration or infection are also possibilities . No pleural effusion or pneumothorax is present . Marked degenerative changes are noted involving the glenohumeral joints bilaterally .
    OUTPUT:
    
Mild pulmonary vascular congestion and patchy right basilar opacity , potentially atelectasis though aspiration or infection is not excluded .