Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable frontal upright view of the chest is provided . Left - sided AICD is stable in position . The cardiac silhouette is moderately to markedly enlarged , appears increased in size as compared to the prior study given differences in technique . he mediastinal contours are relatively stable . In comparison to the prior radiograph , there is increased perihilar opacification with cephalization of the pulmonary vasculature consistent with mild pulmonary edema . Vascular markings also accentuated by low lung volumes . Small bilateral pleural effusions are given haziness of the diaphragms . There is no pneumothorax . Sternotomy wires and numerous surgical clips are again noted .
    OUTPUT:
    
1 . In comparison to the prior study , the lung volumes are low resulting in pulmonary vascular crowding . However , there is increased perihilar interstitial prominence with less well defined vascular markings suggestive of pulmonary edema . 2 . Moderate to marked enlargement of the cardiac silhouette appears increased , given differences in technique . Likely small bilateral pleural effusions .