Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased opacity is noted in the left lower lobe . There are probable small bilateral pleural effusions . Prominence of the hilar contours suggests central venous congestion and / or lymphadenopathy . Heart size remains moderately enlarged , compatible with known pericardial effusion . Unchanged saccular outpouching of the descending thoracic aorta . No displaced fractures are identified . Moderate degenerative changes in the imaged right acromioclavicular and glenohumeral joints .
    OUTPUT:
    
1 . Left lower lobe opacity could represent atelectasis or early infection . 2 . Mild congestive heart failure . 3 . Stable intrathoracic lymphadenopathy . 4 . No visible fractures . If the patient has focal pain , dedicated rib series can be ordered .