Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is an increased opacity overlying the right hemithorax ; however , the patient has pectus excavatum . Additionally , there is a small nodularity overlying the upper lungs on the lateral view . Otherwise , the remainder of the lungs are clear . Mediastinal silhouette is normal . No pleural effusions or pneumothoraces . The left PICC is visualized with the catheter tip at the upper SVC .
    OUTPUT:
    
1 . Opacity in the right hemithorax could be right middle lobe pneumonia , or more likely an artifact of pectus excavatum . As a result , oblique views are recommended for further evaluation . 2 . Small retrosternal nodule can also be further assessed on oblique views .