Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tip of the right IJ terminates in the mid SVC . A ventriculoperitoneal shunt is partially visualized . Lung volumes are low . There is an opacity in the right mid lung which appears more conspicuous compared to the prior radiograph performed several hours earlier , concerning for infection . Streaky bibasilar atelectasis is also noted . There is also a component of background pulmonary vascular congestion . No sizable pleural effusion or pneumothorax . Cardiomediastinal contours are normal . Limited evaluation of the upper abdomen reveals marked gaseous distension of the stomach .
    OUTPUT:
    
1 . Right upper lobe opacity , concerning for pneumonia . 2 . Background pulmonary vascular congestion .