Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Lung volumes are markedly low which limits assessment . Cardiomegaly is noted with hilar congestion and probable mild pulmonary edema . No large effusion is seen . No pneumothorax . Bony structures are intact .
    OUTPUT:
    
Cardiomegaly , congestion , mild edema .