Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Opacity in the right mid to lower lung is noted which could represent effusion and adjacent consolidation . The possibility of pneumonia is difficult to exclude in the correct clinical setting . There is mild left basal opacity is well which is most compatible with atelectasis . The heart is moderately enlarged . The hila appear congested . No pneumothorax . No overt edema . Bony structures are intact .
    OUTPUT:
    
Right pleural effusion with bibasilar opacities right greater than left , likely atelectasis , difficult to exclude pneumonia . Mild hilar congestion and cardiomegaly .