Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mild to moderately enlarged with a left ventricular configuration . Unfolding and calcification are noted along the aorta . The interstitium is mildly prominent suggesting mild vascular congestion . Small bilateral pleural effusions are suspected , greater on the left than right . Posterior opacification of the left costophrenic sulcus has a convex appearance which may reflect loculated pleural effusion or potentially parenchymal opacity that could be seen with atelectasis . Pneumonia is difficult to exclude , however .
    OUTPUT:
    
Findings suggesting mild vascular congestion . Small pleural effusions . Posterior left - sided basilar density , which is highly non-specific but a combination of atelectasis or pleural effusion may be suspected ; pneumonia is difficult to completely exclude , however . Follow - up chest radiographs are suggested to show resolution or stability , and comparison to prior radiographs , if available , may be helpful if clinically indicated .