Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of the right PICC line projects over the mid SVC , mildly retracted since the prior radiograph . No focal consolidation , pleural effusion or pneumothorax identified . The size of the cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Mild interval retraction of the right PICC line , the tip now projecting over the mid SVC . Clear lungs .