Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left chest wall pacer device is noted with 2 leads extending to the region the right atrium and right ventricle . There is no focal consolidation , effusion , or pneumothorax . No signs of congestion or edema . Cardiomegaly is mild . Aortic calcification noted . No free air below the right hemidiaphragm is seen . Surgical clips are seen within the expected location of the gallbladder fossa . Imaged osseous structures are intact . Moderate to severe degenerative changes are seen in the right AC joint .
    OUTPUT:
    
Cardiomegaly without superimposed acute process . Right AC joint arthropathy .