Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided Port - A - Cath is in place with tip terminating in the lower SVC , unchanged . The focal opacity at the left lung apex , which was seen previously is slightly more dense . There has been left - sided thoracentesis with reduction in size of the now small left pleural effusion . No pneumothorax . Small right pleural effusion is slightly increased . Right lung remains clear . Osseous structures are unchanged .
    OUTPUT:
    
1 . No evidence of pneumothorax . Decreased size of left - sided pleural effusion following thoracentesis . 2 . Increased density in the left lung apex suggestive of infectious process , for which repeat radiography is recommended to ensure resolution after treatment . 3 . Slight increase in size of a small right - sided pleural effusion .