Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left PICC has been removed . There are low lung volumes . This accentuates the size of the cardiac silhouette which is mildly enlarged . A moderate size hiatal hernia is redemonstrated . Patchy opacities at lung bases are likely representative of atelectasis , though aspiration is difficult to exclude . Pulmonary vascularity is not engorged . Fullness of the superior mediastinum is compatible with tortuous vessels as noted on the chest CT from ___ . Scarring within the lung apices with associated bronchiectasis is unchanged . Trace bilateral pleural effusions may be present . There is no pneumothorax .
    OUTPUT:
    
Low lung volumes . Probable bibasilar atelectasis but aspiration is difficult to exclude . Possible trace bilateral pleural effusions .