Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mild to moderately enlarged . Enlargement of the pulmonary artery is re - demonstrated . Pulmonary vasculature is not engorged . A small right pleural effusion appears unchanged . Left lung is clear . No focal consolidation or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Unchanged small right pleural effusion . 2 . Similar appearance of mild to moderate cardiomegaly and enlargement of the main pulmonary artery .