Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is enlarged . The aorta is mildly tortuous . Lungs are grossly clear , and there are no pleural effusions . Bones are demineralized , and degenerative changes are present within the spine , as well as scoliosis .
    OUTPUT:
    
Cardiomegaly . No evidence of pulmonary edema or pneumonia .