Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New right - sided central venous catheter is unchanged in position . A tracheostomy tube is also seen unchanged in position . There is an increase in opacity at the base of the right lung most consistent with atelectasis . There is no evidence of pneumonia or pulmonary edema . The left lung appears largely unchanged . The pulmonary vasculature is engorged and the heart is moderately enlarged . There is no evidence of pneumothorax . There are presumed small bilateral pleural effusions .
    OUTPUT:
    
No evidence of pneumonia or pulmonary edema .