Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Underpenetration limits assessment to the lower lungs . Allowing for technical limitations , mild pulmonary edema is suspected with possible trace pleural effusions . The heart size is top - normal . The mediastinal contour is exaggerated due to technique . No definite pneumothorax is seen . Bony structures are intact .
    OUTPUT:
    
Mild pulmonary edema , small bilateral pleural effusions and top - normal heart size .