Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided Port - A - Cath tip terminates in the mid SVC . The right - sided chest tube is in unchanged position . There is continued evidence of volume loss in the right lung with slight interval increase in size of the small right pleural effusion . Right upper lung field opacification is compatible with patient 's known lung cancer with loculated pleural fluid noted along the apex and adjacent postobstructive atelectasis and possible pneumonia . Left lung is clear . No pneumothorax is identified . The cardiac , mediastinal and hilar contours are unchanged .
    OUTPUT:
    
Slight interval increase in size of small right pleural effusion . Persistent right upper lung field opacity representing the patient 's known malignancy with loculated effusion at the apex and associated postobstructive atelectasis and possible pneumonia .