Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes . Allowing for such , the cardiomediastinal silhouette is within normal limits . The thoracic aorta is mildly unfolded . There is no confluent consolidation or large effusion . Relative elevation of the right hemidiaphragm is unchanged since preceding exams . Mild multilevel lumbar spondylosis is present . A 4 .8 x 3 .7 cm ovoid radiodensity best seen on lateral view at costovertebral junction in the lower thoracic spine corresponds to a known expansile lytic rib lesion in left ___ rib , better depicted on preceeding CT torso . Similarly , involvement of the right humerus and spine are better seen on prior CT .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Known left 7th rib expansile lytic metastatic lesion . 3 . Additional right humeral and vertebral bony metastases are better depicted on preceeding CT .