Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low limiting assessment . There is no focal consolidation concerning for pneumonia . No large effusion or pneumothorax . Mild lower lung atelectasis noted . There is subtle prominence of the pulmonary hila likely reflecting hilar congestion . There is no frank edema or large effusion . No pneumothorax . Heart size appears top - normal . The aorta is unfolded . There is tracheobronchial tree calcification . The imaged bony structures are intact .
    OUTPUT:
    
Mild pulmonary vascular congestion without frank edema .