Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Multifocal predominantly perihilar and basilar bilateral patchy opacities may represent multifocal pneumonia , given the clinical history . A small left pleural effusion is probable . Moderate bibasilar and retrocardiac atelectasis is mildly worse since ___ . Lung volumes remain low . The heart size is unchanged . A left internal jugular venous central line is slightly moved in position with the tip in the azygos or internal mammary vein . The right tunneled HD catheter is seen in the right atrium . No pneumothorax .
    OUTPUT:
    
1 . Multifocal predominantly perihilar and basilar bilateral patchy opacities may represent multifocal pneumonia , given clinical history .