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 . There is stable mild cardiomegaly . The mediastinal contour is unchanged . There is mild hilar congestion without frank edema . No convincing evidence for pneumonia , effusion or pneumothorax . Imaged bony structures appear intact .
    OUTPUT:
    
Mild cardiomegaly unchanged with mild hilar congestion .