Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC seen with tip projecting over the mid to lower SVC . There is hazy retrocardiac opacity likely in part due to atelectasis given leftward mediastinal shift which is greater than expected given degree of rotation . Elsewhere , lungs are grossly clear . Cardiomediastinal silhouette is stable . No acute osseous abnormalities . Cervical fixation hardware partially visualized .
    OUTPUT:
    
No significant interval change .