Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compare to the exam on ___ , there is interval increase in right interstitial opacity , likely from progression of atelectasis and possible small pleural effusion or due to lower lung volume and elevation of hemidiaphragm . The left lung is grossly unchanged in appearance . Heart size is mildly enlarged . Mediastinal and hilar contours are unchanged . There is no evidence for pulmonary consolidation or pneumothorax . Left - sided central line with terminates in the proximal SVC , unchanged from prior .
    OUTPUT:
    
Right atelectasis and right pleural effusion , likely unchanged .