Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Overlying EKG leads are present . The lungs are clear . There is no focal consolidation . Mild blunting of the left CP angle could indicated tiny effusion . No right effusion is seen . The heart is mildly prominent as on prior . Hila appear slightly prominent though there is no overt edema . Mediastinal contour is stable . Imaged osseous structures are intact .
    OUTPUT:
    
Mild cardiomegaly unchanged . Possible mild congestion . Probable small left effusion .