Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . Lungs are clear and well expanded . No focal consolidation , effusion , or pneumothorax is seen . The cardiomediastinal silhouette is normal . No acute bony abnormalities are detected . The outline of the sternum on the lateral view appears intact . On the lateral view , note is made of an anterior compression deformity involving L1 with interval progression in anterior vertebral body height loss now measuring 1 .8 cm anteriorly compared with 2 .9 cm on prior exam from ___ .
    OUTPUT:
    
No acute findings . Old L1 compression deformity with worsening compression anteriorly .