Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Evaluation limited due to low lung volumes . There is mild pulmonary edema . Cardiomegaly is again seen . No large effusion or pneumothorax . Prosthesis of the right humeral head noted .
    OUTPUT:
    
Cardiomegaly with mild pulmonary edema .