Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is continued elevation of the left hemidiaphragm with associated left basilar opacity , potentially atelectasis though infection is not excluded . A trace left pleural effusion may be present . Heart size is difficult to assess given the left heart border is obscured , but likely is mildly enlarged . A large hiatal hernia is noted , not changed . Right lung is clear . There is no pulmonary edema . No pneumothorax or right - sided pleural effusion is demonstrated . Diffuse demineralization of the osseous structures is noted with marked degenerative changes in the thoracic spine as well as compression deformities of several thoracic vertebral bodies .
    OUTPUT:
    
Left basilar opacity , potentially atelectasis though infection is not excluded . Trace left pleural effusion . Unchanged elevation of the left hemidiaphragm and large hiatal hernia .