Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates in the upper SVC . There is mild enlargement of the cardiac silhouette . The aorta is unfolded and a small hiatal hernia is present . The pulmonary vasculature is normal . Hilar contours are unremarkable . Patchy opacity in the left lower lobe is nonspecific , and could reflect an area of atelectasis though infection or aspiration can not be excluded . Small left pleural effusion is present . There is no pneumothorax . Mild degenerative changes are noted in the imaged thoracic spine as well as within both AC joints .
    OUTPUT:
    
Nonspecific patchy opacity in the left lower lobe , possibly atelectasis though infection or aspiration can not be excluded . Small left pleural effusion .