Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Previous PICC line has been removed . There is a small f linear density abutting left heart border , question scarring or atelectasis . Otherwise lungs are clear . No signs of pneumonia or edema . Cardiomediastinal silhouette is normal . Bony structures are intact . Degenerative changes of the left shoulder noted . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute findings .