Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well inflated and clear . No pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Limited evaluation of the osseous structures are notable for minimal degenerative changes with small anterior osteophytes . Left shoulder hemiarthroplasty is also noted .
    OUTPUT:
    
No acute cardiopulmonary process .