Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left apical pleural collection is again seen grossly similar in extent . Blunting of the left costophrenic angle was seen on prior chest CT , scout image , from ___ . Left basilar opacity may be chronic . The appearance of the chest is grossly similar as compared to the scout image from chest CT from ___ . The right lung is clear .
    OUTPUT:
    
Left apical pleural collection is again seen grossly similar in extent . Blunting of the left costophrenic angle was seen on prior chest CT , scout image , from ___ . Left basilar opacity may be chronic . The appearance of the chest is grossly similar as compared to the scout image from chest CT from ___ . The right lung is clear .