Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: It 'll changes are seen in the right lung following lobectomy . The left lung appears clear . The cardiac size is mildly enlarged . The aorta appears tortuous with calcifications . There is no pneumothorax , pulmonary edema , or pneumonia . Degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Postsurgical changes following right lobectomy . No evidence of pneumonia or pulmonary edema .