Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Left chest wall AICD is unchanged . Multiple wires overlying the heart likely represent abandoned pacer leads . Midline sternotomy wires and mediastinal clips are again noted . Cardiomegaly is stable . Lung volumes are low though the lungs appear clear . Mild hilar congestion . Trace bilateral pleural effusions likely present . No overt edema . No pneumothorax . Bony structures are intact .
    OUTPUT:
    
Stable cardiomegaly with mild congestion and probable tiny bilateral pleural effusions .