Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The heart is at the upper limits of normal size or perhaps mildly enlarged , although its contours are not fully assessed given AP portable technique and low lung volumes . There is no definite pleural effusion or pneumothorax . Pulmonary vascularity is mildly prominent and indistinct , suggesting mild vascular congestion .
    OUTPUT:
    
Findings suggesting mild vascular congestion .