Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Exam is limited secondary to patient body habitus . The lungs are grossly clear . The cardiomediastinal silhouette is within normal limits . There is no pleural effusion . Atherosclerotic calcifications noted at the aortic arch . No acute osseous abnormalities .
    OUTPUT:
    
No definite acute cardiopulmonary process .