Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear besides mild right basilar atelectasis . The cardiomediastinal silhouette is within normal limits , fat pad noted at the left cardiophrenic angle . There is tortuosity of the thoracic aorta with calcifications at the arch . Nodular opacity in the region of the right hilum corresponds with the right lower lobe lobe pulmonary artery viewed on end . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .