Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Exam is somewhat under penetrated due to patient body habitus , somewhat limiting evaluation . Given this , there is persistent moderate enlargement of the cardiac silhouette . Mediastinal contours are unremarkable . Obscuration of the left hemidiaphragm may in part relate to underpenetration , however underlying atelectasis , consolidation or pleural effusion is difficult to exclude . The hila continue to appear congested .
    OUTPUT:
    
Under penetrated examination , limiting evaluation . Given this persistent moderate enlargement of cardiac silhouette . Obscuration of the left hemidiaphragm may in part relate to underpenetration , however as underlying atelectasis , consolidation , or pleural effusion is difficult to exclude . The hila continue to appear congested .