Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is slightly increased hazy opacity at the left lung base . The cardiac silhouette remains moderately enlarged . There is mild pulmonary vascular congestion . Small bilateral pleural effusions are noted . A double - lumen right central venous catheter , prosthetic mitral valve , and median sternotomy wires are again identified . No pneumothorax is seen . Axillary stent on the left is noted .
    OUTPUT:
    
Slightly increased hazy opacity at the left lung base , which likely represents atelectasis , however developing consolidation can not be excluded in the appropriate clinical setting . Small bilateral pleural effusions .