Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest were obtained with the patient in the upright position . The lungs are well expanded and clear . There are some atelectatic changes at both lung bases . There is no pneumothorax or pleural effusion . Cardiomediastinal silhouette is unremarkable . Visualized osseous structures are unremarkable . There is slight elevation of the right hemidiaphragm .
    OUTPUT:
    
Unremarkable chest radiograph with some atelectatic changes at the bases and a slightly elevated right hemidiaphragm .