Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral low lung volumes persist . Bilateral pleural effusions with adjacent compressive atelectasis , greater on the left compared to the right , is overall unchanged . The heart appears enlarged , overall unchanged from the prior exam . Moderate pulmonary vascular congestion also overall appears unchanged . Retrocardiac opacity persists and could represent atelectasis or focal consolidation in the appropriate clinical setting . There appears to be slightly increased opacification in the region of the right perihilar region , which could represent pneumonia in the appropriate clinical setting or fluid tracking in the fissures . No pneumothorax . A left central venous catheter is again seen and appears to terminate in the right atrium , similar to the prior exam . Median sternotomy wires appear intact .
    OUTPUT:
    
1 . Overall stable features consistent with heart failure - stable cardiomegaly , pulmonary vascular congestion , and bilateral pleural effusions with atelectasis and low lung volumes . 2 . Increased retrocardiac opacity as well as right perihilar opacity compared to prior exams which may represent pneumonia in the appropriate clinical situation versus fluid tracking in the fissures and atelectasis .