Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is slightly limited by patient rotation . Left - sided Port - A - Cath tip terminates in the right atrium . Heart size is moderately enlarged . The aorta is diffusely calcified and tortuous . Mediastinal and hilar contours are otherwise grossly unremarkable . No pulmonary edema is seen . Patchy retrocardiac opacity likely reflects atelectasis . Lungs appear hyperinflated . Small left pleural effusion may be present . No pneumothorax is identified . Multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Patchy retrocardiac opacity , likely atelectasis . Please note that infection is not excluded in the correct clinical setting . Possible trace left pleural effusion .