Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single lead left - sided AICD is similar in appearance as compared to the prior study . Cardiac and mediastinal silhouettes are grossly stable . Possible trace right pleural effusion versus pleural thickening / pleural fat . Right base linear atelectasis / scarring . Mild to moderate pulmonary vascular congestion is seen without overt pulmonary edema .
    OUTPUT:
    
Mild to moderate pulmonary vascular congestion without overt pulmonary edema . Possible trace right pleural effusion versus pleural fat / thickening .