Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Cardiomegaly is new in the interval . Hilar prominence is new possibly reflecting pulmonary vascular congestion . There likely small bilateral pleural effusions . Given the subtle haziness in the lower lungs an underlying pneumonia is difficult to exclude . Upper lungs are well aerated . The aorta is mildly calcified . Bony structures are intact .
    OUTPUT:
    
Development of mild cardiomegaly , hilar congestion in and small bilateral pleural effusions . Subtle opacities in the lower lungs may represent atelectasis versus pneumonia .