Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided Port - A - Cath tip terminates in the mid SVC . Heart size remains moderately enlarged . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . A small right pleural effusion is similar in size with adjacent atelectasis in the right lung base . Lungs remain hyperinflated . A small apical left pneumothorax appears to be present not clearly noted on the prior exam . Mild multilevel degenerative changes are seen in the thoracic spine . No subdiaphragmatic free air is seen .
    OUTPUT:
    
Small left apical pneumothorax . Unchanged small right pleural effusion and right basilar atelectasis . No subdiaphragmatic free air .