Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable semi upright view of the chest . Lung volumes are low limiting assessment . The patient 's chin obscures the lung apices . Allowing for limitations , the heart is enlarged with mild to moderate pulmonary edema noted . No large effusion . No gross bony abnormalities .
    OUTPUT:
    
Mild to moderate pulmonary edema , mild cardiomegaly . Limited exam .